Motorola iTunes phone owners report they have problems playing songs purchased through iTunes 7.
A reader linked us to an Apple Discussion thread where a number of users have listed problems with playing purchases from the iTS through iTunes 7 on their Motorola SLVR and ROKR iTunes phones. It seems these users can play regular music they ripped from CDs, as well as purchases made through iTunes 6 - just not songs bought through the new iTunes 7. The thread hasn't reached biblical lengths just yet, but there are enough comments on the thread that I felt it warranted a post at TUAW.
Possibly the phone needs a software update to be able to play iTunes 7 songs. More details at TUAW.