The latest version of the Android SDK (version 1.6) was released earlier this week and one of more significant features included in the update is the Quick Search Box (QSB). The search feature would allow users to search both the device and the web.
For developers, it will provide the opportunity for quicker access to content inside applications. Developers can provide search suggestions to help applications be found by users.
If you are an Android developer, you'll want to head over to the Android blog to get all the coding goodness you'll need to get included in the Quick Search Box feature. Note that coding up your app for QSB will not automatically get your app included in the new feature.