Genie is a character and gesture recognition system inside Squeak. It is completely configurable and allows you to control everything in Squeak by just using a pen.
Genie was part of Squeak 3.2, 3.3, 3.4, and 3.5. In the process of modularizing the Squeak distribution, it was taken out of the base image. It hasn't yet reappeared on SqueakMap. It's not clear how to get Genie working in a modern image, due to various package breakage.