Some new features:
-Can search e-mail from the Mozilla Thunderbird and Netscape clients and browsing history from the Firefox and Netscape browsers.
-Adds indexing support for the full text of PDFs to existing support for Microsoft Office formats.
-Indexes the metadata of video, images and audio, such as titles or artist information.
"With regard to users, we have tens of thousands of applications and file types they want to search. We've addressed the top requests and most popular applications, and the best way to address [this] is by making desktop search available for developers to write plug-ins." - Nikhil Bhatla, a Google product manager.