I'm having a real time with this. I'm syncing my iPhone with my Mac's iCal and Address Book programs. The first sync went fine. The problem is: When I add a new phone number or change someone's address in the Address Book, it never updates the information on the iPhone! This is driving me crazy. I also find if I change a apt in iCal the phone does not pick up the change and move the apt. The only "fix" i have found for this is checking the box to delete all the contacts and cal items on the phone and doing a fresh push. This works well but if you assign specail rings or add a picture to someone on your iPhone, all the data gets lost! I know the iPhone has a few bugs and that is to be expected but the syncing of the phone is so important to a smart phone, I think it should work at least with a Mac! Anyone else having this problem? Thanks.