scrum.rb is a tool for managing scrum projects. It offers a command-line tool, a GUI and a web application for managing and publishing the artifacts of the scrum process.
AUSten -, for using time dollars and other alternative currencies. An online system for managing alternative currencies. This is good for time banks, time dollars and local exchange trade systems (LETS). Developers are members of Austin Time Exchange
Iodine is an Open Source Agile Project Management Tool based on the Ruby on Rails Platform. It is 100% free. Users will manage project resources such as user stories, defects, iteration plans and product backlog without charge.