For those who came in late, Nvidia wanted its tablet as a gaming device with a specific user niche.However But it seems that Popescu Sorin has managed to run the full version of Ubuntu with all its touch screen goodness.
The NVIDIA Shield Tablet is capable to connecting up to four different controllers and can output 4K resolution over HDMI which would make this a pretty powerful Ubuntu tablet.
Sorin said that he got the tablet to boot from MultiROM and @nvidia driver is working. It makes you wonder why Nvidia did not consider being a little more flexible with its Shield. People might have found more uses for it.