I discovered something with WP7 and bluetooth that I have not seen posted anywhere else. The bluetooth stack on WP7 supports SMS over bluetooth. It works with both Microsoft Sync in my friends Fusion and with my Kenwood DDX616 in my truck. This is the first device I have had that supports this function. I have previously tried an iPhone, Blackberry Storm, Motorola Backflip, Motorola Droid, Samsung Captivate, and Sony Xperia X10. I just wanted to share this with anyone who really cares!