XP StoryStudio is a free project-management portal for systems being developed using Agile methodologies - specifically Extreme Programming. It has been developed internally by a team of enterprise developers at Egg Plc who've worked on Agile projects in real-world environments for several years.
Features:
- Multiple project "portal" approach
- Role based security, with the option to enable anonymous usage
- Resource <-> task allocation to give visibility of developer utilisation
- Skinning support, to allow branding to corporate guidelines
- Graphing of project progress - story and story point burndown, story accumulation, development rate across iterations
- Projections of project duration, effort required, etc.
Check it out here.