Andres Canella has Wake N Shake Alarm Clock (iTunes Link) for the iPhone and iPod Touch in the iTunes App Store for FREE (regularly $1.99) for a limited time.

Wake N Shake Alarm Clock wakes you up by forcing you to shake the iPhone like crazy to shut off the alarm. No mercy.

Compete with friends. Earn points. Conquer achievements. Become the wake up king or queen of the week.