It doesn't wake when you use the mouse, but rather lets you choose one of the album covers you see, so if you see something you want to hear on your screensaver you can just go and click it. I haven't gotten it to actually play anything in iTunes yet so it may not be fully ready. Anyone else play around with the screensaver? Edit: Actually I did get it to play music, you double click on the album you want to hear. Any keyboard presses take you out of the screensaver (Except for volume but I think thats always been the case), or click the exit button in the bottom right corner, but the mouse stays in the screensaver allowing interaction. This must be part of the reason why apple changed it so that the mouse won't wake the computer anymore, to allow for this sort of thing.