Plugins:
Amazon Links Pro
Wp Link Mentor
Multiple Social Bookmarking
Plugins Viewer
Slimbox
Visitor Counter Widget
Youtuber
Authimage
IMDB Movie Information Tag
Move Comments
Slickr Gallery
Trustmeter for Google
Addpile
Adkit24
Ajax Comments
Author TinyMCE
Batch Validator
Contact Widget
Disk Usage
Google Maps Quicktag
Wp-Guestmap
Live Wordpress
Meta Robots
Moolet Ploplet
Optimize DB
Photomapper
Russian Search
Viddler

Themes:
Be Right Back
Blueberry
Tiffany Blue
Avirb Motion
FTW
Geezeo
Loopy Blue
Nature
Particles
Photoblog
Vertigo


Wordpress 2.3 Beta
Wordpress 2.3 Taxonomy Schema
Wordpress 2.3 Release Timeline


Wordpress 2.3 Beta 1

Sources: Wordpress dashboard, Wordpress.org, Boren.nu, Weblogtoolscollection.com