I've had trouble off and on with my Ford Sync as well. I keep hoping the update from Ford will help. When my Sync unfriends itself, I shut the phone off, go into the Sync settings because sometimes, something is amiss or unchecked in that part of the menu. Make sure you've got discoverable and all that stuff on in your phone's bluetooth settings. I also came from a Revo, as well. I have two phones synced, and my Razr is the first on the list, then my husbands "dumb phone." Keep at it, you'll get it. I don't know about your Sync system, but mine is great when it works and totally maddening when it doesn't. You know about the fuse pull if you get really desperate, right?