Google Labs has created a new app, Gesture Search, for the Nexus One and Motorola Droid that is now available for download.
A new Gesture Search is now available for devices running Android 2.0 or above in the U.S., such as the Motorola Droid and Nexus One. Google describes the new functionality as a way to quickly find a contact, an installed application, a bookmark or a music track, by simply drawing alphabet gestures on the touch screen. Additionally, Gesture Search improves search quality by learning from your search history.
Gesture Search is available in Android Market now, and more information and screenshots can be found at Google Labs.