One thing that could be improved would be adding some more auto zoom tweaking.
I found myself wanting to use the auto zoom, but not loving where the zoom landed in relation to the cursor, so I'd place a manual zoom right after, but it kept lurching around in the transition between the two.
Furthermore, it would be cool if you could manually choose when the cursor appears and disappears. The "Disappears after x seconds" is cool, but isn't quite enough control for me.
Other wise, great product!!