Sikuli

An open source project that originated out of MIT, Sikuli allows you to automate any process you can complete in desktop software by training a script to look for GUI elements. Check out the example of the script that pushes a pop-up any time Barack Obama updates his facebook status: http://doc.sikuli.org/tutorials/...

We use Sikuli a lot at GoInstant. Very cool for testing UIs, making sure things are where they're supposed to be.

Very cool! So many use cases :)