[natesm]

If you're looking for other nice and useful little Mac keyboard command utilities, I implemented shake to undo: http://www.natestedman.com/post/shake-to-undo-for-mac-os-x/

[bugsy]

Encouraging people to shake a laptop containing a hard drive is not advisable.

[kirillzubovsky]

LOL! I didn't even bother to check if it's real or not, but just the though of shaking the life out of my laptop to make it undo sounds like fun! I'd never use it, but thinking of it makes me laugh. Thank you.

[natesm]

It's all real, the code is here: https://github.com/NateStedman/shake-to-undo/tree/master/Sha...

As you can see, it was all committed at once, which is the proper way to develop software.