IPhone 3GS Jailbreak released (run on XP, not Vista or 7)

Works for iPhone 3GS. Don't run it on Vista or 7 -- works great from XP.

Literally takes seconds to jailbreak -- much faster than previous generations of JB (like PwnageTool, RedSn0w, or QuickPWN).

Blog post from the developer "geohot": http://iphonejtag.blogspot.com/