Saw it in IMAX 3D last night/this morning in fact. Planning to push my local friends to see it, as I'd like to see it again, though I imagine it might be a bit of a letdown on a normal screen...or in 2D. We'll see!
I saw it opening day in IMAX 3-D and visually, it was AWESOME! Last night I saw the non 3-D digital version and was not disappointed at all.