Here’s a fun, kinda crazy way to use the sudden motion sensors that come in some Mac notebooks, like the newer unibody MacBooks and MacBook Pros. These sudden motion sensors are used by Apple to detect when a laptop with a physical spinning hard drive is dropped, and therefore this tip won’t work on the 2010 or 2011 MacBook Airs that shipped with flash-based, non-spinning SSDs. Using a third-party app, you can pick up your laptop and give it a shake-to-undo option, just like the one on your iPhone, iPad or iPod touch.
Add ‘Shake To Undo’ To A Mac [OS X Tips]
