Saw that hilarious infomercial for the Jupiter Jack (hands free talkies while you drive! oh hai!) and got to wondering if I could use it to listen to Pandora or mp3's on my Eris in the car. Seems pretty hit and miss (one reviewer said it didn't work for his Droid, not sure if he meant the Moto or the HTC Eris) and was curious to know if anyone in this rogue's gallery has tried this out, or any other wireless transmitter for music playback? Not concerned with the "handsfree phone in car" part since I use a bluetooth when I drive. Thanx!