Haha yes, but they also have their RPC over HTTP method if you don't want to use the binary protocol, plus the ActiveSync method, plus the SMTP and POP3 interfaces, plus the widely utilised Web layer that was rewritten after 2003 - I think most of the Exchange clients on mobiles use this.
The ability to reset mobiles devices from within Exchange when a device gets pinched and to enforce keylocks on mobile devices is a great feature that I can't find anywhere else at such a low OS level.
The ability to reset mobiles devices from within Exchange when a device gets pinched and to enforce keylocks on mobile devices is a great feature that I can't find anywhere else at such a low OS level.