Google Android dominates Mobile World Congress show

As Mobile World Congress kicks off in Barcelona, a host of mobile firms have launched new devices, many featuring Google's Android operating system.

Headline grabbers include Sony Ericsson with its smartphone-cum-gaming device, dubbed the Xperia Play.

Rival Samsung has unveiled a new tablet, the Galaxy 10.,which as the name suggests features a bigger 10.1 inch (26cm) screen.

Meanwhile LG has unveiled the first mobile phone with 3D capability.

Sony Ericsson's launch attracted a big crowd as it unveiled it not-so-secret PlayStation phone, which it is hoping will appeal to the widening mobile gaming market as well as to more hardcore gamers.

The device - dubbed the PlayStation phone - has a pull-out control pad and will feature a catalogue of games, from Electronic Art's Fifa series to Assassin's Creed, the Sims and Dungeon Defender.