I pick the FT (Financial Times) Web App for iPhone / iPad. This Web application is really pushing the boundary of what you can do with the Web platform on mobile. It’s a great example of where the Web makes more sense as a development and deployment platform, both from a technology perspective and a business perspective.

I have been carrying around an Android (Nexus One) since it came out but I have just switched back to iPhone (4). Yeah, it’s a closed environment is less developer-friendly but you know what? It actually works – to, you know, make calls and stuff? I loved my Nexus One dearly and the developer story is better than iPhone but the user experience is still inferior – sorry. The iPhone browser is also best-in-class. I might flip back to Android at some point we’ll see.

Chomp (@chomp) is up there – they are doing some really innovative / disruptive stuff with app discovery across platforms.

Other cool start-ups I’m tracking these days include SwiftKey (@swiftkey) replacement keyboard for Android – One of the biggest things I miss about Android is my SwiftKey keyboard – it can predict what word you’re going to use next based on context and history – it’s uncanny.

I’m very excited to see how @Clickslide develops. Finally, take a look at what Vox.io (@vox_io) is doing. These guys are trying to re-invent VoIP from the Web – and Slovenian CEO Tomaz Stolfa (@tomazstolfa) is a definite rising star.

Building out the BlueVia platform is my new task at Telefónica Digital. I’ll be hiring product managers in Madrid and London and I’ll be working with our engineers to take BlueVia to the next level. In the process, I’m hoping to make it more Web-friendly. In my spare time, I’m ramping up on another @overtheair conference and hack-day with co-conspirators @mobilemaggie and @matthewcashmore – we’re aiming to do it at @bletchleypark again in early June – watch this space!

I think “multi-screen” is a big opportunity and approach that will make itself clear in 2012. People are starting to consume services across different devices (PC / phone / tablet) according to context. In some cases, people are working across multiple screens during the same experiences – we’re seeing this with gaming and home entertainment, where kids are texting or using social networks on their phones and tablets while watching live TV – extending their experience of events. The Olympics games next summer will bring this type of experience into sharper focus as people around the world tune in across traditional and emerging social channels. The Web and Web technologies will be playing an emerging role here through emerging technologies being developed in W3C. (Hey, it’s me, so you knew there had to be plug for Web standards in there somewhere.)

3 rock-stars. I’d go with Desigan Chinniah (@cyberdees) from Mozilla/Firefox – he’s making great strides in connecting the Web-centric Mozilla community together with the mobile community. Cathy Edwards (@CathyE) comes to mind. She’s CTO of (and the brains behind) one of my picks for hot app / startup, Chomp. Third rock-star … it’s tough because there are actually a lot of people working on very cool stuff right now, but my third choice would probably be Blaine Cook (@blaine). Blaine was one of the original engineering leads on Twitter. He invented OAuth. And now that he’s out from BT’s thumb he might have a better chance of making something truly disruptive and open happen in the social networking space – one to watch.

10 years ago is when I started working for Vizzavi, the joint venture between Vodafone and Vivendi. The technology platform we developed there became Vodafone Live!.

I can’t say my current boss, Jose Valles (@joseValles49) because I’ve only worked for him for a week. It’s clearly, Reinhard Kreft (@rkreft) at Vodafone Group R&D. I worked with Reinhard on the launch of dotMobi, the W3C Mobile Web Initiative and many other industry-changing projects.

Who else should you interview? How about Kevin McDonagh (@kevinmcdonagh)? He’s a successful entrepreneur. He’s the go-to guy for Android talent and expertise int he UK and he’s the organiser of the hugely successful DroidCon events in the UK.