Empeg in one din slot, and one of the units with fold-out LCD screen for GPS, TV, DVD, PS2, Xbox, and the like in the other din slot.

I've been considering something similar. Crutchfield catalog lists a bunch of fold out screens, but they all only talk about DVD playback, not integrated GPS. And most of them are JUST the screen in that slot, you need yet another slot for the DVD drive.

I once saw a really nice GPS system which had a "3D" option, where it would show you sort of a "chase helicopter" view of the map and your route. It was the clearest and easiest to follow system. In some cities, it even had major building landmarks a la flight simulator. Which one was that? Having something like that would be awesome.

So if I really wanted to go all-out on such a system, what's available out there? Anyone got links?