As I previously reported on the new iPods being restricted to using iTunes to sync music and movies, there is now word that the hash has been broken for at least the new iPod Classic.
However, while this might be applauded, I would take caution at using these methods for Apple can and likely will invoke the DMCA in the breaking of their code.
Discussion at Boing Boing (links to the fix are in the comments)
Instructions via Slashdot