ou’re on the go and you want to look up a contact or open an app, but can’t sort through a hundred names, what do you do?  Well, if you have an Android phone running 2.0 or higher, and you speak English, you can use Google Gesture Search. Gesture Search lets you look for something by scribbling a letter on the touchscreen of your device. Look for a contact, a bookmark, an app or even a music track. It allows you to get through a list quickly without typing. You can download the app by visiting the source link.
source: Google via AndroidandMe