According to WordPress Codex Twitter tools does work with WP 2.3
But from the author’s site, you need a version from SVN????
If anyone reading this is running WP 2.3 and twitter tools, please let me know. That’s what I’m waiting for to upgrade this site.
Update: ok, I didn’t realize or notice the link to the SVN on the authors download page. Guess I’ll have to give it a try tomorrow.