Sweet. Really. There are not too many big changes, but funnily enough they are felt more than previous betas/pre-releases.
First you are struck with the really nice, simple, stylish, cute, add your own epithet default theme - Garland. You can modify the colour scheme online. So palette builders enjoy and share.
Kudos to the reorganised admin pages and everyone involved in that. At first glance it is allright.
The infamous cck and views leave a lot of traces in core.
All I can say it took me between 5 and 10 minutes to setup a basic group blog site. That includes database creation magic, (php) file uploads, user registration ...
Time for theming, upgrading and code porting I suppose. Just where could I get it from?