It's been a while since the Sony Ericsson Xperia X10 got some update love, but perhaps the discovery of a new OTA this morning will soothe that empty part of your soul. Let's clear this up right now: it's not Android 2.1, nor is it Android 2.2. The device's update to Eclair has a broad window of Q3 (which begins just one day from today).
According to Sony Ericsson, the update focuses on improved performance, speed, and responsiveness. They've also added a backup and restore utility for those who may need to reset their phone or exchange it for another one. Finally, PlayNow with premium apps and games will be added in select markets.
A long cry from Eclair or Froyo, but Sony Ericsson's still working hard to keep you guys happy. You can either wait for the device to notify you that the update is ready to download OTA, or you can head over to Sony Ericsson's update site now to apply it manually.