[edellow]

Pebble,

ActiveSync is used to syncronize your contacts, tasks and possibly your email between your phone and comupters. I use it to keep my phone desktop and laptop syched. Don't use it for email (explained below).
When you do a synch, it merges lists. So all your computer contacts will be copied to your phone and vice versa. The first time you use it, you are likely to get duplicates because it won't merge some contacts. Once you clean up the duplicates, it will keep all lists in sync. If you add a phone # on your phone, it will copy to your pc etc..

As for IMAP, go into messeging and add a new account. Don't use the 'Outlook' setup. A new account will allow you to read from the server using your phone and has nothing to do with ActiveSync. The outlook account is for synching directly with your PC so you can't get email when away.

-Ed