Figures... I switched from Gmail to .Mac a few weeks ago mainly because of .Mac's IMAP protocol. I found Gmail's POP system to be very clumsy when accessing it from Outlook on multiple computers.
(I had set Outlook on my work computer to leave a copy of all messages on the server, and I'd set Outlook on my home computer to download everything and delete the server copy, but Gmail wouldn't let me download anything that had already been downloaded by my work computer.)
Anyway, I switched to .Mac when I got my iPhone, and I set Gmail to automatically forward everything to my .Mac address. I couldn't be happier now. Besides, .Mac has some additional features that will come in useful when I get my Mac next month.
By the way, does anybody know how to cancel a Yahoo Mail account? I've had mine for years and I get dozens of spam messages a day on it (even with the spam filter on), and I'm fed up with it. All my friends and family use my .Mac address, and although I can easily delete the Yahoo account from Outlook, I haven't figured out how to cancel it altogether, or at least set up a rule that automatically deletes everything at the server end.