Just got done going through a series of upgrades (attempts), using Firmware 2.0.2 and the new Pwnage Tool v2.0.3, with the same result each time. I've searched the forum, specifically the Pwnage thread, and not found a similar issue so apologies if this is a repeat.
Using a custom Firmware 2.0.1 IPSW created by Pwnage v2.0.3 to OPTION+RESTORE the iPhone, everything goes smooth as silk and works as planned. When the restore completes, the iPhone is unlocked and fully functional. I can connect to EDGE (T-Mobile APN, running unlock'd) and my protected WI-FI without issue. But, when creating new email accounts, the password is never accepted as valid. That is to say, although I can setup the accounts with apparent success within "Settings", subsequent attempts to actually sync or check the particular mail account results in an error, informing me of a incorrect password, and no matter how many attempts to re-enter the password (whether entered at the error message/prompt or re-entering via "Settings") it's not accepted.
The results are the same, after multiple OPTION+RESTORE's, and treating the iPhone as a new phone (not restoring from backup) each time. I've also tried MobileMe, Exchange and Gmail accounts, with the same error in all cases.
Here's the kicker though, as soon as I restore back to a previously created IPSW (created using Pwnage Tool v2.0.2, so Firmware v2.0.1) everything goes back to normal... with all email account types working/syncing correctly.
Anyone else encountered this issue? Is there a thread I overlooked/didn't show in my searching that addresses this? Thanks in advance for any constructive feedback.