I've searched several Droid forums for this answer, and it's been eerily quiet. I've happily left AT&T's network and am digging my DROID. The stereo in my truck is a Pioneer AVIC, and I had the iPhone multimedia cable, with Video In... I could watch movies/video podcasts on my screen while "parked".
Does Android (in general), or the DROID have dual-screen or Video Out capabilities? It seems so esoteric, but when you've had it and gotten used to it, you really miss it!