Coming from the latest issue of EDGE...

“The game runs at 60FPS, while all the 3D games up till now have run at 30fps. The faster the framerate, the more stable the 3D effect, so 60FPS is a big deal.”

“Well, there are players who don’t like 3D and always keep it switched off, so there’s nothing in the game that absolutely requires 3D, like puzzles that can’t be solved without it.”

I'm sure that's good news for just about everyone! You don't have to use 3D if you don't want to, plus you get silky smooth 60 fps no matter what!