Anyone use a vertical mouse?

[Turbo Audi]

And what are your results?

For years now I have been using the same mouse, same MSFT Comfort Curve 2000 keyboard (best ever), desk, and chair height.
It started a few weeks ago, massive pain in my wrist, so much that I can hardly use my mouse.
So a few minutes ago I ordered a vertical mouse from amazon. Just putting my hand in the position makes it feel better. Anyone had success with these mice?

[VipFreak]

Vertical? Like this?

http://www.wow-pen.com/eng/products/wowpen.htm

If so, Yes. I've used that for quite a while now and it's miles ahead of any other mouse I've had. Well, other than a Trackpoint. :p

[NorrisCell]

Never used one, but I may have to order one now. Looks comfortable, and makes sense.