I've started a MobileMe trial, to see what it's all about. So far I think it's pretty sweet, works outstanding outside of the web interface. The website is nice, but that's not how I get to things. Gmail is great on the website, but it's very weird through IMAP. Definitely a lot of hoops to jump through. Google Calendar and Contacts work outstanding with the iPhone, but there's no good way to sync them with the system... there is a way, but it's unreliable. MobileMe fixes all of that, works great on the Mac and iPhone and probably a PC, and also on the website... though not as good on there. Still, I'm happy with it.