In a sudden change of heart, Sony Ericsson has decided to listen to the pleas of thousands of Xperia X10 owners and provide them with the Android Gingerbread that they have been yearning for. The update will be pushed to their phones by end of Q2/start of Q3 this year and will be the latest 2.3.3 update. The software will be similar to what Sony Ericsson will be offering on their newer Android phones, the Xperia Arc, Neo, Pro and Play, except for those features for which there is no hardware support on the X10, such as HDMI-out.
As for the Xperia X10 mini, X10 mini pro and X8, Sony Ericsson has given a solid "No" regarding their upgradability to Google's latest mobile operating system. As for X10, this is going to be the final update that the handset will receive in its lifetime. And this time, it seems they are serious. Just like last time.
Source : Xperia X10 to get Gingerbread Update