Update: Google Chrome is now available for download.
Google has just announced it is set to release a new web browser tomorrow built from the ground up and based on WebKit, the same rendering engine that Safari uses. The browser, dubbed Chrome, is open-source software built with security, compatibility and speed in mind - and of course it'll integrate various Google services in it.
The book points to www.google.com/chrome, but there doesn't seem to be anything live there as of this writing. It's worth noting that while Google is officially entering the web browser fray, they've also reiterated their commitment with Firefox and other opens source projects to "help drive the web forward" - just last week they extended its support of the Mozilla foundation until 2011.