Current favored distraction at work

I have not yet played with it, but the engineers at work are competing at Armadillo Run, a physics-based puzzle game where you use different construction materials to move a little armadillo ball into an interdimensional vortex (by getting it to stop moving for long enough *over* the vortex). It looks like a lot of fun, possibly a good thing to leave running around Penguicon (though it currently doesn't run on linux)...
UPDATED TO ADD: ok, now I've made up a solution to this week's challenge, and learned a bit about optimizing, and I can confirm what the others say: this thing is really fun. I just dropped an hour on watching demos and working on solutions (other people's as well as mine) and I scarcely even noticed the time passing.

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