Following is from some other forum:
" was worried about the dropped connections that people were talking about on the forums, but I tried it with my new chocolate phone and it worked flawlessly with our car's bluetooth. No pairing issues, no dropped connections, and the phonebook gets transferred too.

Some more spec info:
5er - 2006 e60 with CIP20
Chocolate - firmware v4 for Verizon, CDMA

Maybe the latest phone firmware fixed the connection issue? "

I am getting chocolate tomorrow, I will let you guys know about how it goes. Thanks for all your help guys.