You can now try ClusterStorm before you buy it. Get the free version here. Also available for iPad is Glowmation, a simple neon, doodling app that traces over your original drawing using animated particle effects. Get Glowmation here.

ClusterStorm for iPhone is now available in the App Store! Get it here. Almost one week since it was submitted and "In Review" for less than 3 days, you can now play ClusterStorm on your iPhone, iPod Touch or iPad as long as you have a minimum OS 3.0 installed!