Wow. Those on a Mac know you can sync Calendar / Contacts / Notes /Bookmarks and Mail already through iTunes, right?
I got MobileMe because I was curious. I have used the find my phone once, and LOVE the live bookmark synching without going through iTunes. But is it really worth it? Meh, for online file storage, there are better ways.
I'd much rather sync over the air. I hate having to plug into a computer.