Here's all I did. 1. I restored to 4.1 8B117 (not an upgrade) 2. Looked at my baseband version (it was 02.10.04) 3. Then I downgraded to 4.0.2 by option-clicking restore (successful, no DFU mode) 4. Then I looked at my baseband version again (it was back to 01.59.00!!!) How crazy is that? As far as I know, iTunes has NEVER done that before in the history of OS updates! How is this possible? Does iTunes 10 automatically revert the baseband so you can downgrade to any OS you want? Someone else please try this! This computer isn't running any mods or host files (whatever that means). Thanks for viewing. By the way, I'm not trolling. This REALLY happened. I'm back on 4.0.2 and I didn't have to do anything special except option-click restore and clicked on iPhone3,1_4.0.2_8A400_Restore.ipsw Please, someone else try this so we know for sure that it works. Please. Could this be an iTunes 10 thing?