Gesture recognition for Corona SDK

Hi,
I currently work on Gesture recognition for Corona SDK:

http://www.youtube.com/watch?v=3_bEvJVjaaY

Implemented gestures right now:
“A”, “B”, “C”, “D”, “E”, “F”, “G”, “H”, “J”, “K”, “L”, “M”, “N”, “O or Circle”, “P”, “Q”, “R”, “S”, “T”, “U”, “V”, “W”, “X”, “Y”, “Z”, “Swipe Right”, “Swipe Left”, “Swipe Down”, “I or Swype Up”, “Square”

What else gestures should I join?
Best regards [import]uid: 12704 topic_id: 7864 reply_id: 307864[/import]