The Xperia X10 is a popular handset and the first Android powered handset from Sony Ericsson but, one thing which has let the handset down is the old firmware. The Xperia X10 comes pre-installed with Android 1.6, with 2.1 promised for the end of year. However a lot of apps require 2.1, which means the X10 hasn’t got as vast a supply of apps as other handsets.
With the announcement of Android 2.2 and the update already rolled out onto some handsets, a petition has been started online, asking Sony Ericsson to include an upgrade to Android 2.2 instead of 2.1 when they release the update to the handset.
Update: Almost a year later, Sony Ericsson released Android 2.1 to the X10 at the end of October, then announced that the X10 would stay at 2.1 but, with the huge uproar that came from that announcement, Sony Ericsson have confirmed that they will be updating the X10 to Android 2.3. You can read about it here.