Sony Ericsson has announced the launch of Android-powered Xperia X10 in the US on AT&T platform. The smartphone’s specs sheet includes: 8.1-megapixel camera with smile detection, face recognition, autofocus and LED flash.

Those expecting Xperia X10 to run on latest version of Android will be dismayed as the smartphone runs Android 1.6 and so far there is no word about an update. In early May, Sony Ericsson said that it would deliver Android 2.1 to the X10 in Q4, but if analysts don’t see Android 2.2 coming.

Sony Ericsson Xperia X10 comes with a 2GB in-box microSD memory card. The Sony Ericsson Xperia X10 also sports a 4-inch capacitive touchscreen, a 1GHz Snapdragon processor, as well as a Timescape solution for viewing Facebook and Twitter updates, text messages and e-mails in a streamlined view. By clicking on Sony Ericsson’s infinite button in Timescape, users can also bring up and view all communications from a single person in a single place.

The Xperia X10 will be available in black at AT&T stores in the US, authorised retailers and online from August 15 for $150 after a two-year contract agreement and minimum smartphone data plan.