Think of it as a fold instead, if that helps. You have a piece of paper (2-Dimensional Plane) and you can fold across a third dimension so that two otherwise distant edges touch, making the trip from edge to edge much faster than normal. You take a 3D object and fold across an undetectable dimension which is predicted by M-Theory/String theory whathaveyou, and you could do the same thing, effectively making "faster than light" travel without actually breaking any rules. We know high energy interactions can cause distortions in space/time, so this sort of thing would be entirely consistent with modern theoretical science. It would be amazing to have this verifiable lab evidence of objects travelling through +3 dimensions of space, though!
From Scientific American
: Zichichi speculates that the "superluminal" neutrinos detected by OPERA could be slipping through extra dimensions in space, as predicted by theories such as string theory.