Hi guys I have a 1.6 revision B. Straight to the point, when I try and use a Magic/Might or Track pad with my Air it works for a while then goes all schitzo on me. Ill describe the symptoms. Constant lose of connection, inability to connect, slow inconsistent tracking movements and inability to have more than 2 devices paired! Obviously this makes it impossible to use effectively with my LED Display. Its recently had a new motherboard as my usb failed. Do you think I got a reconditioned/faulty part or it would be interesting to know if other people are having these issues, before I call apple care Cheers Guys!