I recently obtained a very used Mousetrapper advance. I got it cheap just in order to try it next to my rollermouse free 2.

This review will also be done iteratively. In the coming weeks I'll post my impressions with more kilometers travelled.

First some pics :





Iteration 1:
After 15 minutes of use I can say this -> The scrollpad is very nice to use, MUCH better than an ordinary scroll pad because the top material of the pad sticks to your finger and moves with it. It also has endpoint detectors which I still have to test more thoroughly, but they seem to work OK. The wrist wrest is also a big bonus.
There are 5 buttons which I have yet to find out what does what. If I want to scroll I can use the right side of the pad. Any up down stroke on the right side instantly translates to a scroll up down. Very well done.
The USB connector can be detached and the pad can be operated with my right thumb whilst holding my fingers on the home row. I have yet to get some kilometers on this pad in order to properly judge the whole thumb only controls, so stay tuned for my next iteration ( somwhere next week )

Iteration 2 :
Wait 1 week

But in principle it works like a Touchpad? Sorry, but I've never heard of it and the pictures don't really make it obvious.

and does it move 'without friction', very fluid&easily?
Interesting little big thing.

It works like a Touchpad, but imagine the top layer of the pad moving with your finger movements. I'll make a video of its operating mechanism soon. It moves almost without friction, so very fluid&easily.

I see now how it works. When mouse has been sighted, open hidden compartment in the back. Approach mouse and smack it with the mouse trapper, into the compartment. Close up and dispose contents when the thing starts to get smelly.

Does the mouse get an electric shock when it hits the grid in the center?

The first MouseTrapper model was actually a simple mechanical device, and had a roller bar like a RollerMouse.
You clamped an existing ball-mouse in it on the left side, and the ball touched against the roller bar. When you moved the roller, the ball moved. It is from this device that the name comes from.

Nice!

I've acctually had the plesure of using this device and it is fantastic.

I know this is an old thread, but further thoughts after many months of usage? Perhaps a comparison to the Rollermouse?