Microsoft has expanded the consumer reach of Windows-based mobile phones with the launch of the Xperia X1 smartphone by Sony Ericsson at this week's Mobile World Congress in Barcelona.
It is the first Windows-based phone launched by Sony Ericsson, which normally relies on the rival Symbian OS.
The Sony Ericsson Xperia X1 comes with a three-inch touch screen, a sliding qwerty keyboard and a 3.2 mega-pixel camera. The phone supports 3G and Wi-Fi services.
The phone will be available to buy in the second half of 2008.
