Looks sick! Looks like a good reason to buy a sony xperia Z3, maybe one of the only reasons to buy it, but anyway this would be sick. Maybe something for iphone 6 plus/note 4, bigger screen so you can see it al quite good.
It'd be like the Nvidia Shield .. If you have huge network latency it becomes unplayable. I actually traded mine in, because of all the people on my network.
same concept for new playstation tv. you can remote play any ps4,psnow,psvita,psp and some ps1 classics from any tv via playstation tv unit. I was able to sign into my brothers ps4 30 miles away over internet and control his ps4 while he was using it. worth $80 just for that.