FM transmitters are fun and all, but then you’ve got to deal with all that static and interference, and in the end, the sound quality can be pretty sub-par at best. Bluetooth can keep data a whole purer, and that’s exactly the standard that the Sony Ericsson MBR100 uses to broadcast your musicphone’s tunes to those around you.
Connected to this glossy, but otherwise nondescript-looking device is a RCA cable and an input cable that will make it easy for you to connect to just about any car (especially those with front-mounted auxiliary ports) or home stereo. You do all your playlist management and so forth on your cell phone, so that Walkman phone essentially becomes a remote control. Power comes by way of a rechargeable battery.
No word on price, but it should be out “soon.”