from the dev blog:

A customizable dashboard, multi-file upload, built-in galleries, one-click plugin upgrades, tag management, built-in Gravatars, full text feeds, and faster load times sound interesting? Then WordPress 2.5 might be the release for you. It’s been in the oven for a while, and we’re finally ready to open the doors a bit to give you a taste.

to find out more juicy things their working on click the pic to jump there.