Version beta-2 of WordPress 2.9 is ready for your testing pleasure. You can download it or use the WordPress Beta Tester plugin and auto-upgrade a test installation. See all changes since beta 1.
For more WordPress news, check out the WordPress Planet.
There’s also a development P2 blog.
To see how active the project is check out our Trac timeline, it often has 20–30 updates per day.