It might help to know what the readings are with the phone vertical, about 45 degrees to the right, 90 degrees to the right, and the same for the left. I don't quite understand what you are trying to do. Are you trying to make an application that reads the tilt of your phone?
I wrote some code for tilt sensing, but my accelerometer only gave me positive values (from analog ports). Its a little complex figuring out actual degrees. Might be easier to figure out just which way you are turning it.
http://www.picbasic.co.uk/forum/cont...-axis-g-sensor
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