Someone who you would expect would get more time spend on to solve this issue. Syncing on the mac can be frustrating. The most reliable way seems to be to sync to Google, and let that be the master copy for all email/contacts.
My father has 6 Mac Laptops. So I thought it would make sense to use MobileMe to synchronize the addresses between the different machines, his iPhone and his iPad. But what happens was a total disaster. MobileMe kept doubling the address book entries and even worse: They started adding up and mixing address book entries from different people. Do not ask me how that happend but it did. I deactivated MobileMe. My father also went to the Apple Store … Read More
via Open Source Teddy Bears
