LastTweet is a project mainly written in ..., it's free.
A Trac wiki macro used to display your last tweet!
Trac Wiki Macro to render last tweet by a user
[[LatestTweet(radman)]]
Where radman is the userid that you wish to display.
Will render:
Said about 9 minutes ago: "having fun with Trac! I <3 macros."
Requirement: python twitter (http://code.google.com/p/python-twitter/)
See http://trac.edgewall.org/wiki/TracPlugins for installation instructions.