The Googs unleashed Handwrite for touch screen devices yesterday. Instead of using those sausages you call fingers to tap out a Google search on a tiny keyboard, now you can just use your finger and write it. Pretty slick!
With my first couple attempts at searches, not only was it able to read my sloppy penmanship (fingermanship?), but it also used predictive technology to finish words. That means if you’re feeling completely lazy and want to order a pizza from your recliner, you barely have to trace the letters p-i-z before you start getting results.

The Verge explains how to get Handwrite up and running:

Tap it to enable Handwrite, and then you can scrawl your search queries without needing a keyboard or voice input. It's designed to work best in Chrome, and Google warns it's still "experimental," but it's available for iOS 5-and-higher devices, phones running Android 2.3 and higher, and Android 4.0 tablets.