just popped back in to see how the i760 is working for you all. i put threaded messaging on the Tilt and it does break MMS...voice command also can no longer read your SMS.

however, if the i760 uses ArcSoft MMS, the XDA folks figured out that if you downgrade your ArcSoft MMS version, MMS will work again, albeit in a separate account than the threaded SMS. spb phone suite and phone alarm find the right accounts for the on-screen buttons so there're really no extra steps to do an MMS message.

i won't post links to other sites or to the older ArcSoft MMS version. just search over at XDA.