Some users have been reporting crashes of iTunes since the upgrade to firmware 2.2.1 for both the iPhone and iPod Touch. Apple has released a workaround for this. Hit the break to see the letter from Apple iTunes support.
» Firmware 2.2.1 iTunes crash fix

Some reports are coming in from users that are trying to update their Apps in iTunes 8.0 with a iPod Touch that it’s simply not working. Users are getting error 5002 (Unknown Error). The solution to this problem is quite easy. It’s in fact not a solution but more a workaround.
» iTunes 8: Workaround for error 5002 When Updating Apps