We’ve all been reading and watching intently the latest iPhone rumours, all with different perspectives on the issue.

Marc, one of our user interface designers is most interested in the size of the device (you know men, always got size on their mind…):

“I find the current iPhone model just a little too cumbersome, so I love the idea of a slender iPhone that I can stick in my jeans pocket and just forget about, as covered by Jeremy Horwitz on iLounge. Sure, the upcoming smaller 2.8″-screen model is just a rumour at this point, but it would be a sensible move from Apple - the iPhone can’t be all things to all users. A product family makes complete sense to me.

If you’re an existing iPhone user you may have spotted a new version of our interface we just released into wild. It was our mission to create a rich, usable experience that is complementary to the iPhone’s native UI. We couldn’t help ourselves from sprinkling in some fancy Apple-style widgets in there. Just go to taptu.com on your iPhone to check it out.”

Meanwhile, I’m most excited about the faster 3G connection (assuming O2 doesn’t mess customers around). I unfortunately live in the middle of nowhere, where EDGE generally isn’t available, which means that I often find myself following a link on Twitter, which leads to a YouTube video, just to get a pop-up telling me that I must be on EDGE or wi-fi to be able to watch it.

On wi-fi, the iPhone’s a total gem, a great browsing device. Not so great on the input, even with my small hands, so the thought of an even smaller iPhone doesn’t appeal to me. On EDGE, it’s quite acceptable, but unleashing full HSDPA speeds in that device would make it even better. I don’t think I’ll be swapping my 6-months old iPhone for the 3G one purely on the speed factor, but if new features which I can’t get through software updates appear, you may find out I’m first in line for the new one.

Are you at all interested in the next iPhone release? Sick of the rumours already? Got your own theory on what’s coming up next?

This afternoon, you may have noticed that the Taptu service, as well as the blog, suffered from a short downtime period. We’ve now chased the gremlins out and have resumed normal service!

Lubna Dajani and David Harper invited me to participate in a panel session at Mobile Monday New York on April 28th. The subject was Mobile Analytics and Social Search. About 100 people attended the event in the gleaming Samsung Experience Center in the Time Warner Building at Columbus Circle, and one of the attendees, David Berkowitz, liveblogged the session.

Several people posed me questions on mobile social search. Here are a couple of them, together with my answers.

Why can’t existing desktop search engines meet the mobile challenge?

Well, they are trying to meet the challenge, because there are 27m searches a day already on mobile. But this is just 2% of the volume of desktop search, something is wrong. There is too great an emphasis on showing PC web results on devices that can’t consume PC web pages very well.

How can marketers and SEOs take advantage of social search?

The truth is that today it is very difficult. But there are a couple of early initiatives underway that will change this. At Taptu, we have recently created a search API for mobile content site owners. Moblr, a European mobile social networking site, have integrated this API into their service, to give their users access to the huge range of free mobile content that is contained within the Taptu search engine index.

At Yahoo, the new open SearchMonkey initiative will let site owners bring in some aspects of social search, which may or may not be applicable to mobile.

While in New York, I couldn’t resist the $20 tourist ride to the top of the Empire State Building. The last time I did this was 29 years ago, during my first visit to Manhattan. This time I visited at night, and the cityscape was just as awesome.

I can’t imagine a chemist walks around thinking everyone else appreciates chemistry the way he does. Yet I’ve grown so used to being surrounded by fellow bloggers, Twitterers and Firefox users, I’ve been known to forget that outside of my fun geek bubble, people are still using Internet Explorer, visiting websites rather than using RSS feeds, and are utterly uninterested by the latest web app’s private beta. Like a massive distortion field, I assume that because all my immediate friends and colleagues have the latest gadgets, it’s fair to extrapolate that everyone else does. It ain’t so!

However, looking into my crystal ball, I can see that things are changing. Sharing is becoming so easy and effortless that, in a NYT article, Nokia said “it surveyed 9,000 consumers last year and concluded that by 2012 one out of every four consumers will create, edit or share entertainment with friends, instead of getting it from traditional media outlets like television or movie studios.”

In the US, according to Forrester’s Groundswell Social Technographics Profile (erk, such a painfully dull name for otherwise pretty cool information!), certain segments of the population are already blowing those numbers out of the water. Already, 39% of 18-24 year olds and 30% of 25-34’s are labelled as content creators, while in the UK, they’re 19% and 10% respectively.

With moves like Vodafone’s decision to include 500MB of data to all new monthly contracts, concerns over data tariffs are going to disappear over time and getting your phone out to capture that unmissable clip to share to YouTube, Qik or Flickr will become second nature! If an image is worth a thousand words, these snap videos will be worth a million, whether you’re just looking to share it with your family or, like yours truly, to hoards of readers.

So go on, pick your weapon and start sharing! Yes, even you, mom! It isn’t just for kids and geeks anymore.

Recently we gave our results page a facelift. One of the ways we’ve made the page cleaner is to simplify – we’ve removed the source URL string from the results page.

In the past we thought it was a good idea to display it. At the time it made complete sense: it helps the user decide the relevance of the result; A video from ‘youtube.com’ may seem to be more attractive than one from ‘zooblr.com’. Many of the big players (Google, Yahoo!, etc.) display the source URL on their result pages. But the interaction within Taptu is very different - click a result in Taptu and you’ll be whizzed to a mobile-friendly Taptu Summary page. Do the same in Google Mobile and you’ll go to a transcoded source site.

People have established perceptions of how a search engine should work. When a URL is displayed beside a link, first-time users perceive it to directly link to the external site – in the old version of Taptu at least, the user’s expectation would differ to the actual behaviour.

So for now at least we’re experimenting by removing the URL. What do you think – should we continue to display it? Did you find it useful?

Yesterday, I came across an article on BBC News on the topic of mobile cyber-crime. (By “came across”, I really mean that a dozen people emailed, IM’ed or Twittered the link to me. Thanks everyone… I think?) It’s therefore my duty to write (or pontificate) on the topic.

Among viruses for mobiles what has been growing are trojans that exploit mobile payment systems such as premium rate SMS. One instructive instance of such a malicious program is known as Viver. This was discovered in May 2007 and hides its malicious code inside three fake applications. Installing any one of those bogus applications on a Symbian phone starts that handset sending costly premium rate SMS messages to an international number. Each SMS message costs about $7 (£3.50).

Now, I have a rather unforgiving attitude when I hear things like this; In the same way I rarely consider it “bad luck” when someone ends up with a computer virus, I feel it’s the device owner’s responsibility to make an educated decision on whether or not to download an application. Most people can’t be bothered to use mobile apps, so take-up of apps is low to start off with.

Secondly, it’s probably the only context where I’ll say this, but thankfully the mobile world is so fragmented that there is no one-size-fits-all virus which will infect all phone types in the same way and cause a worldwide outbreak.

To the best of my knowledge, operators use complex fraud detection systems to flag up unusual mobile use, so I’d like to think that, God forbid, there should be an epidemic of mobile viruses, these could be nipped in the bud by the operator’s watchful eye. Unfortunately, I’m not so convinced that when the right hand doesn’t know what the left hand is doing, and entire departments have their collective foot firmly inserted into the mouth, I should trust operators to react swiftly to the problem.

So I suppose it makes this post a plea to all mobile users to be smart about their phone use. The mobile web is an infinitely safer place than the desktop web as far as likelihood of picking up something nasty, but a little bit of common sense goes a long way no matter where you are. You wouldn’t eat an apple if it looked rotten, so why grab an application for your phone from a dodgy-looking mobile website?

Next week on Monday 28th, Mobile Monday New York has invited us to join in on a panel on the topic of “Optimizing the Mobile Experience and Increasing Visibility with Social Search and Mobile Analytics”. We’ll be in great company, on this panel moderated by Bryson Meunier of Resolution Media.

Panelists:

• Dean Collins, Amethon
• Joe Cuccinelli, Quattro Wireless
• Dan Mason, ESPN Mobile Web
• Adam Kerr, Bango
• Greg Harris, Mobilytics
• Stephen Ives, taptu
• Stan Wiechers, TigTags

For more details on the event venue, have a look at the MoMo NY post on the event. We hope to see you there!

As mobile UE designers, we face a constant challenge - how to offer our users lots of great features without creating a complex experience for them?

Within our team, we talk often about the experience we want to create - as people use our service for the first, second and future times. We work to create an experience where features are ‘revealed’ to users as they choose. We want this to happen progressively over time, so the user deepens their experience with the service under their own control.

Rather than purely taking in consideration what features to include in the service - which is what Kathy Sierra refers to in her Featuritis Curve below - we look at how the features could be unveiled so that the first visit isn’t overwhelming! On a mobile phone in particular, where we face constraints of limited screen space, network latency and navigation, it’s crucial that we fight the urge to tell a user everything at once.

Some users just want a simple search experience. Others will want to share what they find with friends by SMS. Others will want to broadcast a link to all their friends - direct to their favourite social network or microblog feed, (i.e. Twitter). We need to consider every one of those scenarios when designing.

For the first time user, our service is clearly a mobile search engine. We keep it simple and don’t offer stacks of features that will overload them either onscreen or cognitively. As users explore the service, they can discover other features - or ignore them - as they wish.

There is a concept in User Interface (UI) design called progressive disclosure, which Jakob Nielsen referred to in 2006.

A classic example of progressive disclosure in computer software is the ‘Print’ dialog box displayed when printing a document. First, you’ll see the dialog which shows only a few important options. If you want to, you can also ‘disclose’ a whole range of other settings/controls - the ‘advanced mode’ - peeling away at the layers of the onion until you get to what you need.

As a concept, progressive disclosure is similar to what we’re trying to achieve with the user experience of Taptu. We want this approach not only to work at individual widgets level, but to underpin the whole service experience as it unfolds to our users.

Have you used a service that gave you this feeling of revealing features? Or one that utterly failed at it by either overloading or hiding them too far away? We’d love to hear more about any you think do it well, or not so well!

We’re excited and honoured to have been selected by Red Herring as one of the Top 100 European Tech Startups this year.

Past winners have included some of the most successful and innovative companies out there, such as Google, YouTube, Skype and Netscape, and the Top 100 falls under the theme “Europe 08: Ahead of the Curve”, so it’s great to be included in such hot company!

Following the warm reception we received at Mobile World Congress in February, where we received the Mobile Monday Peer Award’s Community vote in the Emerging Startups category, we’re very grateful for the recognition our users and industry colleagues have given us.

The Red Herring site contains the full list of companies in the Top 100.

This week’s Carnival of the Mobilists is hosted by Debi Jones at MobileJones and contains a bumper crop of posts from all around the world and on a variety of topics; Handset companies, former handset companies, Internet companies, new entrants and social networking giants are all involved in mashups of services.

Have a look for a good roundup of this week’s mobile news.