It's 100% CGI, that's the point isn't it?
Edit: Apparently not
Although, surely watching a film trailer designed entirely to be watched in 3d is useless on a regular screen?
That's the beauty of it all. This technology is revolutionising how we watch movies. He's developed new techniques. We are already seeing the release of 3D movies on DVD and soon our television will be in 3d.
Sky TV are trying to get it into mainstream - http://tv.sky.com/skys-3d-telly-news
I believe that this film will be used as the demo movie on new systems that feature 3D. I doubt this film will lose anything from being watched on a regular TV. We all love Aliens and Terminator 2 and those were not 3d.
I don't see Avatar as just a film, I see it as an introduction to the future not only in cinema but in our home.