The Palm Pre does WHAT with Exchange?

Now wait just a gosh-darn cotton-pickin' minute here. Sure, the Palm Pre will sync up with an Exchange account. That's Smartphone 101. But to the best of our knowledge, Windows Mobile phones — and every other phone that licenses Exchange — can only sync to one account at a time. Don't believe us? A quick trip to The Google brings up:

• A 2006 blog entry from the Outlook Mobile team.
• A 2007 Exchange ActiveSync FAQ.

But Palm, apparently, says different. Our friends at PreCentral.net spotted deep inside some recent leaked documents a line or three where it's explicitly mentioned that the Pre will sync to multiple Exchange accounts. The next question, natch, is: How the heck is this being accomplished? Some IMAP trickery? Some heretofore unknown service? Follow-up question: Will this be available on Windows Mobile. And if not, why?!?!?!?