I recently encountered a problem with Pwnage. I have a 3Gs on 3.12 with the old bootrom and SHSH on file with Saurik. It Pwn'd fine, and Ultrasn0w unlocked it when I upgraded to 4.0. About 3 days later, when texting, the iOS4 text application crashed. I rebooted and the pineapple came on as always, but the flipped into Recovery mode for 1 minute then shut off. restarted a number of times and the same effect - start, then Recovery modem then shut off. Even when I used the Windows program to kick it out of Recovery, it repeated the same issue. Tried to rePwn with iTunes, and got the recovery message, but would not restore (got error 2). I had to downgrade back to 3.12. I don't know what else I could have done differently. Anyone else have this issue?