In late July Palm sent a complaint to the USB Implementers Forum over improper vendor IDs. When plugging a Palm Pre into a USB device, it acted as an iPod when syncing with iTunes. Apple and Palm got in a fight because of this. Apple disabled this from happening further, then Palm found another way to make it work. Now Apple has once again blocked the Palm Pre from syncing with iTunes 9. Other iTunes 9 features are listed here.