I'm pretty sure their role could be fully played by the blurbs at the beginning and end of the film.
Unless, of course, you meant to include the behind-the-scenes stuff, Social Network-style. In that case, you'd probably want to hire whoever those earlier G-nex Youtube videos were supposed to be about. You know, the ones in German?
Although, the demo unit in Samsung by Colombus Circle in NYC was taken down by the big bad Verizon 
