Gabe just twittered a SF4 analytics screenshot
Update:
Gabe tweeted a link to a demo of the Analytics module here. Ok, so now what it does is just poll one of your existing google analytics accounts to show the data all silverlightified. So just follow the directions to make a dummy project (no need to attach it to your CTP instance). As of right now it's just a showcase and doesn't have even 1/2 of the GA data.