I don't really believe 3D will take off, it's one thing to go watch in a nice movie theater the last technically impressive blockbuster (like Avatar), it's another thing entirely to expect people to drop thousands of euros upgrading their stuff and constantly have to wear those glasses, which are really tiring on the eyes. I'm a huge tech nut, a hardcore gamer, and even i'm not willing to do it, nevermind joe average.
It's cool that Sony / Toshiba / etc are pursuing this type of stuff, but i doubt it'll be successful.