After numerous delays and endless cries of "hoax!", it looks like the iPhoneSIMfree iPhone unlocking software is finally available for purchase from four online retailers around the world. Wireless Imports in the US, iPhoneWorldwideUnlock in Australia, 1digitalphone in Germany, and iPhone4arab in Saudi Arabia (currently down) have all purchased bulk licenses from the iPhoneSIMfree team and are selling individual unlocks for around $100 (Update: that price is just from the US etailer, it seems; looks like the Aussies are letting it go for under 50 bucks American. Also, the Hackint0sh community is already busy at work trying to snatch these sites' code as we speak).
I would say the torrents would be out soon for this software ;) iPhoneSimFree.torrent