Although in terms of setting up LeJos on mac osx 10.4 has been very pain staking today, we did manage to get the tweet bot up and running in it’s basic form (although no interaction with twitter as of yet).
We have created a lego tweetbot code repository using google code and created twitter account for Tweetbot (if you wish to follow). We also wrote some basic code for communication. A good start to the project (if you discount silly problems hardware and LeJos related).
Here are the two bots that will be part of the tweetbot project