Here comes a fun one by Erica Sadun. Butterfly is actually a very cool app - the first game I've seen which uses the accelerometer to enhance game play. Its actually a great tool to show off how cool your iPhone is.

To use it, install via Installer.app, start it up, and then lay the iPhone flat in your hand. The butterflies will float around the screen, you can move the net by tilting the iPhone in the direction you want the net to go. The net and butterfly just have to touch in order for it to count as a "catch." Great job, Erica! I'm very interested to see the fun games this will spawn. I can envision a lot of cool maze games, etc... like the old ones where you had to tilt the toy to get the ball through the various obstacles. Fun times.

<img src="http://www.modmyi.com/appimages/butterfly.jpg" border="0" />