paperlined.org
apps > autohotkey > apps_wanted
document updated 16 years ago, on Apr 19, 2008
It's a fairly basic idea, though it takes a bit of work to implement.

Basically, each computer should be able to display something like a red border around the outer border of its monitor, while some (special, unused) key is held down.

That's it... once you have that code ported to each platform, and you've standardized which key it is, then, the magic happens:

On the primary computer:

The net effect is that you have a mouse-based 2D alt-tab, that allows you to very quickly scroll across all available screens.