Google says a completely redesigned Android Market client is being rolled out to Android mobile phones. It's expected to be available on all devices running v2.2 and above in the next few weeks.

The home screen has a new 'tile' format with a promotional page and the option to search for books and movies in countries where these services are available. There'll also be country-specific lists of top apps in many regions.

The Vodafone Foundation charity has launched the EU Smart Accessibility Awards, offering a €200,000 prize fund to application developers who help improve the lives of older people and people with disabilities across the European Union.

There are €50,000 prizes for the best Android application in four different categories:

Google's I/O 2011 developer conference has seen the company talking about its Android mobile platform.

It says there are now 100 million activated Android devices around the world, with 400,000 new Android devices activated every day. The Android Market has seen 4.5 billion downloads and currently has 200,000 free and paid applications available.

MobiWire has launched its new user interface for Android smartphones. The news follows the company's transformation in February, when it changed its name from Sagem and first revealed its user interface plans.

Surface UX enhances the standard Android user interface. It claims to simplify and improve usability - and also introduces 'Surface Apps' that appear as branded on-screen widgets.

Nokia's Qt application and user interface framework business unit, which enables software to be deployed across different platforms without rewriting the source code, is being split. Nokia will continue to invest in the development of Qt for all users, while Finnish company Digia will acquire the Qt commercial software licensing and professional services business.

Qt is available under open source licenses and a commercial license.