Thinking about this a little more, knowing that the keycaps are held in by hooks and, therefore, directing the force, I wonder how hard it would be to push the keys. When playing with small magnets, it can be pretty hard to push the opposite poles together without the magnets skewing off to one side. I know these won't be incredibly strong magnets, but they do have to hold the keycap up, thus, having some strength to do so. Hmmm....