Robbie the Robot is a human-machine conversation project I have been working on for Mac OS 10.5. More information can be found on robotgrrl.com/robbie. 
Incase you don’t have Mac OS 10.5, there are videos of it 
Part 1:
Part 2:
Robbie is coded in Cocoa Objective-C, and future plans are to:
- Allow the creation of many language models where one can program what they want Robbie to listen to and respond with
- Enable binding with a SQLite database
- Making it able to have additional plugins
- Interfacing Robbie with servos on an Arduino board
Cool ‘facts’ about Robbie the Robot:
- Made it onto the Apple downloads site
- Was talked about on an Italian mac fansite
- Won a silver medal at the Bell MRSTF 2008
- Has over 2000 downloads
For more information, and if you want to download it, please navigate yourself to this webpage. Thanks! 