Nifty.

I've long wanted a scrollable/zoomable desktop, with a minimap that shows the overall layout. Think the UI of an RTS game, where instead of units you move around and resize windows. This seems like something in that direction, at least.

How does Karousel work with full screen applications, e.g., games?

Karousel knows when application wants to be fullscreen and allows it to take the screen. If you use hotkey for "move focus to left/right window" you can even exit fullscreen to see other programs. You can also force any program to fullscreen with a key. This is a pretty good workflow as you can fullscreen something and still keep the layout, just not visibly.