Steven Troughton-Smith’s Orbit is an actual implementation of Ocean Observations’ Springboard Exposé for the iPhone. For obvious reasons it’s only available in the Cydia store1 and not in the official iPhone App Store, but if you have a jailbroken iPhone, it’s something you might want to check out.
Steven is already working on version 2.0. If you want to keep up with what he’s doing, it’s probably best to follow him on Twitter.
If you require a short url to link to this article, please use http://ignco.de/204