Tweetc is a project mainly written in PYTHON and JAVASCRIPT, it's free.
Allow you to post more than 140 characters to Twitter using multiple tweets.
This project allows you to post more that 140 character to Twitter by posting multiple tweets. If the the tweet is over the tweets a link is created back to the longer post. It mage for Google App Engine. Rename main-sample.py to main.py and put in your apps credentials.
Live Version @ http://tweetc.com