What I'm more excited about is the streaming possibilities. Now, from what I gathered from Anandtech is that it's the PC (with the compatible Geforce card) that's streaming the data to the receiver (compatible device plugged into your tv, ie: Ouya) and not the Shield. Not sure if that statement is correct, but if it is I wonder if at some point streaming could be done from your desktop PC to the receiver on your livingroom tv and any compatible control option could be used (ie: bluetooth devices). Now that would be exciting to me and would really bring PC gaming as a contender against console gaming for the livingroom.
To me, this is a more realistic and viable approach to Onlive-styled streaming gameplay.
I'm sure if this technology takes off, we'll see AMD do a similar thing with their Radeon GPUs.