Mac OS X only: We've been crazy about Quicksilver—a free application launcher for Macs—for years now. Today Google is releasing a new search-and-launch application called Google Quick Search developed by Nicholas Jitkoff, the developer of Quicksilver.
Like Quicksilver, Google Quick Search not only searches for and launches files and applications—it also can drill down into content and perform context-specific actions. So, for example, Google Quick Search indexes my Address Book contacts; if I perform a quick search to pull up my contact card, I can hit Tab to drill down into possible actions to perform—like composing an email or starting an IM chat.
Google Quick Search integrates with Spotlight, so it's not reinventing the wheel, either. Where it really covers new ground, however, is its integration with Google search. Much like the previously mentioned Google Mobile iPhone App, Google Quick Search offers as-you-type search results from both your desktop and the web. It features quick and easy site-specific, indexes items from your Google account (Google Docs and Picasa Web Albums, for now, but presumably more to come), and even offers handy keyboard shortcuts to quickly start a new site-search (for example, invoke Google Quick Search and hit Cmd-3 for Wikipedia).
The application is currently just a prototype, so expect to see some rough edges. That said, in my experience with it so far, it's been smooth and responsive for such an early release. It's feature set isn't up to the level you'd expect from Quicksilver, but it's a great start, and an exciting application to keep an eye on. Google Quick Search is a free download, Mac OS X only. Best of all: It's open source—just like Google Chrome. If you give it a try, let's hear what you think in the comments.