Theremin (Clangers) for PocketPC

Freeware Pocket Clanger Theremin
How cool is that. This is a real fun app for Pocket PC. It even has a cute Clanger right there in the middle. Pick it up here. Here's what the Ledset site has to say about it:

A FreeWare Theremin for your PocketPC - V1.02 24th Jan 2004

With a real Theremin, the user is able to create music by simply moving a hand in the proximity of a radio aerial, this movement effects the tuning of an electrical oscillator circuit, and thus music can be played with nothing more than gestures of the hand.

A PocketPC doesn't include the means to replicate the radio circuitry capable of detecting the presence of a hand, but it does include a CPU powerful enough to synthesize the analogue circuitry within a theremins sound generation stage.

The Pocket Clanger Theremin is controlled by moving your stylus/finger around on the multicoloured pad with the picture of the Clanger on it:

Moving horizontally will cause the frequency (pitch) to change.
Moving vertically will cause the amplitude (volume) to change.

With skill and practice there's no reason why you can't become a virtuoso on this peculiar instrument.