title: ShakeGesture library WP7 - Shake count
body: <p>i've being reading about your ShakeGesture library and it's really good!
  But i was wondering if there is a way for use this library for count the numbers of a shake.
  For example, i want to have an app where the user needs to shake the phone 30 times. If the user shakes it 10 times, something will happen. If 20 times, other thing will happen.</p>
  
  <p>Is something like this possible?</p>