I am extremely pleased with my iPhone and MobileMe. My MAC and iPhone sync well (Calendar, Contacts, Address and Mail). I have also installed OmniFocus which syncs the MAC and iPhone through Idisk). I have my data, photos, music and new apps up and running smoothly. Sure there were a few initial bumps in the road, but having been at the bleeding edge for over 20 years, I have never had such an easy time implementing very sophisticated applications. During the first 36 hours, MobileMe was sketchy, but Apple quickly resolved stability and speed issues. I expect it will only get better from here. I've been waiting a long time to replace the functionality of Blackberry Enterprise Server-based services. IMHO Apple has hit a home run. I sympathize with the many Forum members who are having problems. Many of the postings here are very useful in resolving problems. However there seems to be a overly negative, if not hostile, tone to some of the postings. I just wanted to weigh-in with my positive opinion. I hope others with positive experiences will let their voices be heard.