Github_to_talker is a project mainly written in Ruby, it's free.
A simple app to rePOST GitHub commits to TalkerApp via GitHub Service Hook.
This is actually a rack application that helps to receive POST request from your GitHub hook service and rePOSTs the commit message back to your Talker room.
Talker: http://talkerapp.com - a cool collaboration tool that I use with my friends.
./script/deliver_payload
Good luck!