I've been a .Mac user for a few years now, and with the exception of a few major outages, I've been more or less happy with the service. However, with the availability of GMail IMAP, I'm considering ditching my .Mac account and switching to Gmail. I don't tend to use the .Mac services other than email, and it has obviously occurred to me that I'm paying $100/year for a service I could get for free from Google. Before I go ahead and do the switch, I just wanted to get your opinions on Gmail vs. .Mac for the iPhone. Also, is there any .Mac service you use that you find invaluable? Perhaps I'm not using it to its full potential. Thanks for your thoughts.