This is just a quick command line twitter client. Nothing major... not even a config file - just set your username and password within the 'tw' script itself, and that's it. Run it with no arguments to get your most recent public/mixed tweets, or run it with arguments, and the command line becomes the tweet message.
The "more info" link goes to the "rand" page that has the most recent versions.
It only requires that you have perl and curl installed. It handles all of the XML parsing using a kludged chunk of code. It's surprising that it works at all..