However, if you're talking about the Tab, it does have HDMI out via the dock. I recall seeing them for not too much money, though they are much more expensive than they should be.
I have one of those HDMI docks too (in addition to the keyboard), in case there's any questions. I'm expecting to maybe order a couple of the Samsung car mounts soon, too. We'll see--I've been mulling it but, and I could be wrong here, I think it doesn't automatically support a line-out (or some kind of audio) through that wide port in the car mount which would make it easier to just get into the car, click it into the mount and drive off, instead of having to do that AND still connect a line-out from the headset. It's just a slight disappointment, though, since I almost always use a Jabra bluetooth FM transmitter (with microphones for phone calls) that I've got in the car anyway.