This is a life-saver! My computer is running out of USB bandwidth with all my capture cards, and with this I can hook everything up and have it working until I get more USB-controllers. I am a hardware-kind of guy to the core, but this works flawlessly and I'm actually second guessing some stuff...
I suppose with a deticated, closed-off Network switch and some extra ethernet cards you could do some truely amazing things with this, plus save a good couple of bucks on capture cards for each of your other PC's.
This is nothing short of amazing, I'm even using the official 20$ NDI app from AppleStore to connect my Iphone to this and I only see possibilities with this technology. To the best of my knowledge the limitations will be within your home network.
Good work!