A couple of more things which made me ‘stuck in a moment':
Camargus multicam system which covers 180 degrees angle view, 16 HD cameras can cover the whole arena. The system ingests all the cameras simultaneously and create single superwidescreen movie. It’s still a prototype, but they’re going to finish development till the next year.
There is nice demo reel on their website.
Another thing is the giant touchscreen overlay developed by U-Touch:
And even larger one, both screens have multitouch support: