One thing I have noticed with my iPhone that I thought was kind of odd, was that when I use my 3rd party Bluetooth Headset, the ringtone that I hear in the headset is kinda funky. With my old Nokia, the ringtone in the headset matched the ringtone set on my phone (which was an mp3 file). But with my iPhone, the headset ringtone is a cheesy MIDI sounding song, reminiscent of "flight of the valkyries". Is this a 'feature' of the iPhone or a problem with the headset? Is there some way to make the headset ring with the proper ringtone?