Google today confirmed that they are going to launch a new browser : chrome tomorrow. Check out the Google’s official blog here.
The web browser will compete with Internet Explorer and Mozilla Firefox.
Google has also launched a comic which describes the need and feature of the new browses.
Here’s the link to the comic http://www.google.com/googlebooks/chrome
Well, Google has already released the “Chrome” Browser for Windows Vista and XP
Download it here
I don’t know why Google doesn’t release products for Linux 
Waiting for Chrome (Linux Version)
It’s another one of those “Why didn’t I think of this?” ideas..
I too am now waiting for the Linux version. I think they should have made the Linux version available first, as Linux users (I feel) would be most receptive to beta open source software.
Regardless, I’m glad that there’s another competing browser that (in theory) advances the idea of the browser in many compelling ways. I hope that Mozilla (at least) and developers of other browsers integrate the best parts of Chrome into their own projects (if not in code, at least in concept). Like the Chrome developers, I too am interested in moving the Internet forward.