how sensitive is the actual accelerometer? -is it only capable of knowing if the ipoT is right side up, or tilted left or right? -is it capable of knowing to a certain degree how far the ipoT it tilted left or right -can it determin if the ipoT is tilted forwards or backwards? -can it mesure acceleration/deacceleration? the video on the apple website about the accelerometer lead me to beleive that it can only sense down in 4 directions. the video says it used a silicon block in a magnetic feild and that when it is tilted it disrupts current around the block showing witch way is up. but in the video it only shows 4 points on the block that would disrupt the feild? was this just to simplify the actual way it works? or is it only capable of knowing down in 4 directions. if this is the case then it would be hard to impliment this into games and apps.