well i upgraded to 2.1 today and used pwnage to jailbreak my 3g iPhone. i followed the tutorial on hackthatphone and got an error message when i go to load the custom firmware onto my phone. tried it 3 or 4 times and kept getting the same thing. i've jailbroken countless times before and this is the only time i've had an issue. i'm headed off to work right now so i don't have time to troubleshoot it. i'll figure it out tomorrow i'm sure but just wondering if anyone else had issues like this.