So, it will also scroll diagonally?
You might want to attach a two foot string to that little USB thingy. It could be slightly difficult to find it after sweeping the house...
I bet Mac could tie a secure knot on that thing, assuming he has a mountable (third-hand) magnifying glass.
But, if you like it, great! That's the most important thing! Just be careful for the first 500 miles, that thing looks pretty fast!