The OSX zoom has the option to follow the mouse and is what I use (and require) so I can track what I'm reading. It's not default, but it exists and works incredibly well even under heavy graphics use. Seeing something like that work well on something other than OSX would be great. But every other attempt has bee spotty at best.

I look forward to seeing this work, but I worry about the hardware requirements that will be imposed.

I have a 2007 white macbook that zooms flawlessly. If I need a high-end video card to zoom as smoothly it will be a problem.