Google, you got to love ’em. Apple decided to support Microsoft Exchange Server rather than Google or Lotus (or Apple’s own LDAP/iCalendar format!) on the iPhone. Lotus builds a Web Client so that iPhone users can access Notes servers. Google already has that in spades but that ain’t enough. They want to sync natively like Exchange. To Google, this is child’s play. They just do an "end around" by using Microsoft’s ActiveSync to sync Google Apps to the iPhone. This is some serious L33T work. Color us impressed.
Google Sync uses the Microsoft© Exchange ActiveSync© protocol. When setting up a new Exchange ActiveSync account on your iPhone, all existing Contacts and Calendar events will be removed from your phone. Please make sure to back up any important data before you set up Google Sync.
Oh, and Google Apps now sync with Windows Mobile devices. joy?