Physical gestures (swing, jab, throw)

Hi,

I am trying to make a game which uses the Android phone as the controller. The game is based on sports activities and hence the controller is not virtual joystick or buttons. I want the phone to emulate Wii-remote and its physical gestures like swing, jab, throw etc.

Earlier I could implement a game where I can tilt the phone using the accelerometer values. But how would I write the gestures? Like suppose if you do a punch/jab gesture with the phone, the game inside the phone should detect it as jab gesture and trigger an event.

Is there any plugin for that? Else how can I write the gestures? What is the basic logic behind it?

Thanks a lot!