I recently purchased the SGS2 and am very content with it, it really is a great phone. However the elation of this new purchase has degraded into paranoia about its functionality. So i was hoping you guys could lay some of my fears to rest or confirm them, anything outside of this pointless purgatory. Basically I downloaded the app Phone Tester, and went to look at the sensors on the phone and it seems like my phones accelormeter and gyro sensor behave very erraticly. Even on a completely flat and solid surface the Z variable will not go to 9.8 meters second rather it will very quickly move between 9.6-9.9. Has anyone else noticed this? I have the same effect with my Gyroscope and compass.