Nice little widget. I just install it and it is fun. :)

I have one R&D idea: user can choose more than just one axis and different axis are shown in different color, so you can see which is which.

Idea number two: draw the seismometer graph in 3D! Here is on example, but isn’t the best one, I think. Still, I hope you get the idea http://www.ipej.org/0703/klemm3.jpg

Nice, keep on going! :)