Well, I have a HP Touchsmart laptop, and a recent discussion on a different forum led me to see just how fast I can skill with this. I have used it before, but never really testing the limits of it. Well, here's what I've managed to figure out so far (all of these are relatively theoretical and it's very difficult to keep this up for a long time):

72k bolts per hour

7,200 herbs cleaned per hour

Firemaking is the same speed, but much easier

Unfortunately, it really only speeds up training when you have to click rapidly, similar to mousekeys, but it's much more difficult to right click, so that is a bit of a limitation. Still, I'm really liking these numbers.