The iPhone not syncing with .Mac is a complete mystery to me, frankly. With the ability to sync all that information from a Mac to .Mac, you'd think it would work on the iPhone, too, without having to dock with the computer and sync the data from the apps.
No, wireless sync (for .Mac or Exchange or Notes or whatever) would make the iPhone a much more desirable smartphone for business users and non-business users such as myself who like having all their data at hand.