Web-based Scrum project management tool. It is based on Henrik Kniberg's book "Scrum and XP from the Trenches" available at InfoQ. It allows drag'n'drop sprint backlog assignation. It is already usable and under constant development.
Please download GNU tarball from wanted version in: http://windsofscrum.svn.sourceforge.net/viewvc/windsofscrum/Scrum/tags
Generate installable binary distributions of Ruby programs for many platforms (many OS, with or without Ruby installed on clients...). Fit to distribute extensible (plugins) Ruby programs also. Handles also libraries and uploads on websites (SF.net...).