My Galaxy S acts like its accelerometer is not calibrated. However, I checked with the internal hardware test. Dialed *#0*# then entered Sensors dialog, and my readings on x y z axis' went to 0 when put on a level surface. In spite of that, Layar and Asphalt5 still thinks my phone rolls to the left when on a level surface. Pretty strange.
It is very frustrating, that Samsung lacks the calibration feature. I think I will return my phone, not because the hardware is broken, but the soft(firm?)ware surely is.