To be fair, I'm assuming it's not intended for us to be consuming individually at our discretion, but rather Ilya runs it on our behalf at an event. (Not like it would be hard to add some UI though!)
What really is bugging me though is the antialiasing, is anybody else seeing that?
Yep it was given at this year's Velocity Conference (which was great fun by the way, lots of cool presentations) http://velocityconf.com/velocity2012
Not seeing any aliasing here.
Spacebar and arrow keys control the slides, just like in every spreadsheet application, ever.
I think you meant presentation (as in powerpoint) not spreadsheet (as in excel).