I just wanted to chime in.  I just bought a 2011 Ford Edge Sport.   The Sync has been nothing but a problem so far.  The system will not stay booted for more then 10 minutes with out a soft restart.  then some message about performing maintenance.   The bluetooth is not syncing now., and when it did, the BT audio does not work.   when I start it, it just disconnects the phone.  It is quite frustrating.  I also have a 2010 Ford Fusion Hybrid with Gen1 Sync, and that one works 100% or the time perfect.  I do hope that ford can get this to work for me (I have not had time to contact the dealer yet.  I just got the car yesterday. )  I will call tomorrow and see what happens.  I will also try to pull fuse 29 tomorrow to see if that helps.