Seems like it will be a great tool and best of all it's free. It used to be Urchin on Demand.
Anyone thinking of integrating it into their sites?
http://www.google.com/analytics/
Introducing Google Analytics.
Sophisticated. Easy. Free.
Google Analytics tells you everything you want to know about how your visitors found you and how they interact with your site. You'll be able to focus your marketing resources on campaigns and initiatives that deliver ROI, and improve your site to convert more visitors