Is there any service like FastMail, with a FastMail-like quality web interface, that offers ActiveSync support?

I don't mind paying a little extra to cover the licensing. But I don't want to be stuck with IMAP again -- the biggest draw for service for me is the "Contacts + Calendar + Tasks + Mail" instant syncing of something like ActiveSync.

Rackspace E-mail comes closest from what I've tried. But being stuck on Outlook Web Access isn't awesome.