Well now, this is going to be interesting.
Google's entering the Browser Wars tomorrow, when they allow folks to download the beta version of their new browser, called Google Chrome.
Going to be interesting, they've added a new JavaScript engine, and added code so that a site that would crash a browser will now only close the tab that you were in. Very streamlined apparently. Also will be fully up to date with Google's Anti-Phishing database for safe browsing.
Looks like it's completely open-source (if true, wonder how soon the new features will be added into IE and Firefox 3)
Official Google Blog: A fresh take on the browser