I have a jailbroken/unlocked 3gs running on 4.0.1 (installed using snowbreeze custom firmware). I don't have any of the SHSH blobs for the phone... Based on what I've been reading here, I cannot restore to 4.1 and maintain the unlockable baseband until a new pwnagetool comes out. Any suggestions on how to remove all content on my iphone without having to do a full restore though itunes? I need to resell it ASAP, and my initial plan is to go through and delete everything manually... Thanks!