This is a very interesting idea and bonus points for giving us a testing area. However, it is implemented in a way that is unplayable, or at least one would have to spend a lot of time to get good. The issue is that after you manage to get the first bounce, the second one will probably be hell (if the ball's direction points at anywhere near any corner), because you spent time moving the first pad into position but then the next one needs to be in the place almost immediately. Or maybe it's just me. But I think you could have spent a bit more time tweaking or trying out alternative controls entirely. For example I would find it enjoyable if the pads were moved into place by mouse click. Or something, I don't know, but this is too hard.
But, very nice graphics, sound, and the basic idea.