Originally Posted by Äß§ý∩†H♠HäŽ€
It exploits a .PDF flaw in the iPhone OS. I did it Saturday on my iPhone 4. Easiest jailbreak ever, took about 2 minutes to download and install.
As for how it works - Umm you slide the little bar and it jailbreaks your phone lol. Nothing to it really. If you're doing an iPhone 4, make a backup first because you'll need to restore from backup to get facetime and mms back.
Did it on my iPhone 4 too - Very easy.
You don't need to take a backup for MMS and Facetime to work - There has been a cydia update. If you install the update, then reset network settings then it should restore MMS & FT.