Hi, I have recieved the update from A 2.2 to A 2.3.3 and I am pleased with the improved speed, but very unhappy about battery life. I use the phone in the same way as with version 2.2 and there I good get 4 days out of the battery (playing games once in a while, a couple of calls, no internet connection active).I also use(d) Taks Killer to remove all unwanted services. With the same usage, I only get 1 1/2 or 2 at max out of the battery. I completely drained it and charged it full, after charge unplugged, waited for a minute and plugged it in again for a charge boost. Still, this after on day, the battery level dropped to 40%.... I rather go back to Android 2.2 because I believe battery life is more important than a quicker tilt speed or other small speed improvements.