First off, thanks to the WP developers and testers. 2.8 is smoking fast compared to prior versions. That is a great relief.
One tiny little thing I miss from 2.7 was the layout of the Plugins page. It was so much easier to understand what was going on when you had plugins divided by the activated, recently deactivated, and "just sitting there" groups. I really wouldn't mind seeing that paradigm come back.
That said, awesome work everyone!