This is interesting: according to TUAW, MobileMe might be free very soon. I took a 60 day trial of MobileMe last year, during October and November. It was decent, but other than the 20 GB of "cloud" storage, it didn't offer me anything Google didn't. At least, as a Windows user. I knew a couple of Mac users who got a lot out of it.
I ended up cancelling the trial before it ran out. I figured I'd go back someday, if I buy a Mac.
Would you try MobileMe if it went free?