Ratatap Drums is a fun and realistic drum kit for Apple iPad. (Also available for the iPhone and iPod Touch)
The harder you hit the drums, the louder they sound. Swirl your finger around for slower or faster rolls. The drum sound varies slightly from hit to hit, just like real drums.
Oh–and you can make your own drumsets. Choose from one of the ten (10!) included kits or create your own, choosing from the hundreds of included sounds.
Get it here 