Google is going after Microsoft with their own browser, should be very interesting:

http://googleblog.blogspot.com/2008/09/fresh-take-on-browser.html

Update: Google has made a comic book to explain the browser:

http://books.google.com/books?id=8UsqHohwwVYC&printsec=frontcover

Update2: Download it now (Windows only so far)

http://google.com/chrome