It's a solar grill that uses an evacuated tube (like the old thermos bottles) so that it can cook things quite efficiently, much better than something like the Global Sun Oven. This one is even more special because you can get something they call a "solar phase-change battery" to be able to cook after the sun sets, still without electricity.
It is supposed to be big enough to cook a meal for 8. It doesn't look quite that big to me, but it can probably handle 4. You can grill, steam, or bake with it. You get 2 trays so you can cook two different things at the same time. You can get just the solar grill, or you can also get the "solar battery" and/or a grill stand.
Here are some pictures:
Here is the link again:
The GoSun Grill