I know this may sound crazy but I was wondering how hard/impossible it might be. The reason being that so many things are "ipod compatible" or "made for ipod" and it would be great if we could take advantage of that somehow. Of course the dock connector is different but things like my car stereo that has a usb input and an ipod mode for controlling the ipod. It would be great if I could plug the droid in and take advantage of some of the functionality somehow.
I can't see car manufacturers or boombox people supporting android any time soon, so maybe there is some sort of workaround like creating an emulator..