Sony Ericsson plans to make an Android 2.3 Gingerbread Update available to the Xperia X10 which had its last software update being the Android 2.1 Éclair. The upgrade is expected to be available by the end of Q2, or early Q3.
It’s not good news for all Xperia X10 owners. The upgrade will not be available to all carrier models and some might not even get this upgrade at all. Features like face recognition and smile shutter may be lost but more importantly the Sony Ericsson backup and Restore Client will be lost as well.
You can only download via a PC, and downgrading isn’t possible either. For more details visit the SE Product Blog