The one thing I like about MobileMe (I've had it for a few months) is synchronization of bookmarks... the only other useful function IMO is calendar sync, but it's horribly buggy. I tried using it for sync'ing an iPhone, iCal on my MBP and Outlook in Win7/BootCamp on my MBP... it totally trashed all my calendar entries. I had entered people's birthdays as recurring all-day events in Outlook. When MobileMe got hold of these they were somehow shifted one hour back when they were created as duplicate events on the iPhone and in iCal. Then MobileMe saw those and said "hey, Outlook doesn't have these so let's copy them there". After this feedback loop had been allowed to continue for a while, each birthday had like 25 duplicate events for each recurring instance. It broke some other stuff as well, can't remember what it was but ultimately I had to cut Outlook out of the MobileMe loop. I don't think I'll be renewing the subscription. DropBox serves me better than iDisk, and syncing the three or so bookmarks that change every month just isn't worth a hundred bucks a year.
*nods* I know what you mean. Seems really weird that iCal and MobileMe has so many hiccups. Some of us (raises hand) are cludging our calendars to make it work as best we can. For ex: I have Exchange at work, and it's locked down tight such that the only way to sync with everything else I own (including a Windows Vista notebook at home with Outlook on it) is to use a separate PDA. In my case, a Palm T|X. So, fine, I'll sync to the notebook and MobileMe will then grab it and sync to my iMac and iPhone. Somewhere along the way, the entries looks different to someone and so I end up with duplicates.
Only seems to happen with birthdays for some strange reason. I gave up trying to figure it out, and just downloaded an iPhone app called "Occasions" - and use that as a birthday reminder. For $.99 it's a pretty sweet product actually, and utilizes the contacts list and gives you an on-screen countdown/reminder.
(And no, I don't own this product, nor work for whoever it is who designed it - it's just a good product and I don't mind saying so. You know, like Shazam)