It was a surprise trailer for Tr2n (or, Tron 2), a 26-years-later sequel to Disney's classic Tron. While it didn't get great box office the first time out, the popularity of Tron has grown over the years, becoming a cult classic. And then, of course, there are folks like me who liked it from the very beginning, and still love it to this day.
Just search for Tron on YouTube and see what you find. Tron Guy.Fan projects like this. Tron-like music videos. And don't forget Cardboard Tron.
While we still can't be completely digitized into the computer and become a program, and talk to, say, Microsoft Office like we're talking to a co-worker in the next cubicle (btw, here's my vote for the modern-day equivalent of the Master Control Program). What would Power DVD 7 from Cyberlink look like? I dunno. I just hope, when they do make it--and, based from the cheers I heard on the bootleg cell phone footage of the teaser they ran at Comic-Con, actually doing it is a no-brainer--they don't make it cutesy with lots of references to things like FaceBook, MySpace, Google, Web 2.0, etc. I hope it takes place in the original world of Tron . . . updated, of course, given 26 years have passed since the original Tron and Tr2n.