What are the best phones available (UK) to maximise the functionality of the bluetooth voice and audio options in the Z4 with Pro Nav, full bluetooth phone and audio options - phone book download/SMS download etc? I assume it would be best to use a phone which has the snap in cradle as well. This would discount the iPhone 4. I am due for an upgrade and may as well go for the best phone to match the car. The BMW website isn't much use, and apart form iPhones, most of the tested mobiles are reasonably old hat.