Just wanted to mention that Spiralocity is now available on the app store.
Spiralocity is a personal creativity app that enables you to become a sculptor with light. Unleash your inner artist and create stunning particle effects in full 3D, complete with animation. Spiralocity is based on the mathematics of the spiral, and utilizes the Unity 3D game engine to provide an easy-to-use environment for developing an amazing variety of visual effects.
Trailer/Demo: eccentric Orbits entertainment
App Store: Spiralocity for iPad on the iTunes App Store