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This picture shows the Sony Ericsson X10 Mini Pro being held next to its marginally older sibling, the comparatively hefty X10. Given its size and keyboard, the Mini Pro lives up to its name.
There was no shortage of Android phone launches at Mobile World Congress, most of them far more standard than Sony Ericsson's tiny implementation of the Google OS.
Motorola's Quench is a prime example. The latest of eight Android phones launched by Motorola over the past six months, it supports Flash Lite and multitouch.
The handset also has interchangeable covers, perhaps in a bid for the youth market.
Symbian had a slight presence at MWC, despite being in a transitionary period between the old, proprietary version of the OS and the forthcoming open-source version.
Sony Ericsson's Vivaz Pro, pictured above, was one of the few handsets using the OS to be launched at this year's show. It is the first of the company's phones featuring a slide-out Qwerty keyboard and based on the Series 60 platform.