I have had my iMac for approaching 3 years and have not bothered with MobileMe as I rely on Time Machine and an External Hard Drive. But now I have a 32GB iPhone 4 (wow!) and I wonder the extra Sync facility would be better with MM ? Another question please - I am on a limited (500MB) Data Plan and would MobileMe soak up my uploads and downloads especially photo backups and email. Any advice and opinions much appreciated - Thanks.