The Tech Report played with the ThermalTake A2413 - this product is a 7" LCD display that's embedded in a 5.25" enclosure. It's just like a CD drive but instead of a drive tray it's a 7" touchscreen LCD display that rolls out of the enclosure:
The motor that extends and tilts the screen could stand to be quieter, but it gets the job done, deploying the screen in about five seconds. From there, it takes an additional five-or-so seconds for the screen to actually light up. Apparently, it needs to warm up, or something.
As for the screen, it measures seven inches diagonally with a wide aspect ratio. The screen has a maximum display resolution of 1024x768—at least that's the highest resolution it will accept from a video input—but it only has 800x480 pixels, just like the Eee PC 700 series. A 1024x768 desktop nicely fills the A2413's display, but without enough pixels to properly display that resolution, text is quite difficult to read, even if you're up close.
ThermalTake's 7" LCD display retails for around $340. Check the video to see what happens when you push the eject button: