According to this post on another forum, the Cingular version of this phone has a newer firmware and does work with the blutooth iDrive system in the new 3-series.
http://www.bimmerfest.com/forums/sho...d.php?t=170129
Does anyone know if this system is different (in terms of sofware and compatibility) than the BMW bluetooth/assist package in the 2006 X5??