title: iOS Gesture recognition utilizing accelerometer (and gyroscope)
body: <p>I would like to detect gestures on an iOS device using the accelerometer and perhaps the gyroscope. The Application should detect movements like drawing a circle or a rectangle in the air. I've found several papers on gesture recognition on iPhones but there is no actual code which I could use. I wonder if there is a library which could assist me in approaching this goal in any way? If not, I have to start building one on my own! :)
  Thanks in advance!
  Markus</p>