Someone correct me if I'm wrong, I'm about to do a brain dump here. So basically, this'll be similar to the nVidia controller thing (in a sense)? You'll grab a ps4, a vita tv, then be able to take the vita tv to the middle of east bum fuck somewhere, and be able to play all your ps4 and vita games?
I wouldn't be surprised if you had to be on the same network, but that's the general idea. It can also play some vita, psp, and ps1 games on its own.