Kenai is Sun’s connected developer destination. It is a integrated suite of developer services where you can host your open source projects. Currently the following features are supported:
- Source Code Management (Subversion, Mercurial, and Git)
- Issue Tracking (Jira and Bugzilla)
- Mailing Lists
- Download facility for documents
- Evolving integration with NetBeans
When you create an account at Kenai, you can host up to five projects for free. I imported two of my hobby projects to try it out, and I liked it. See wikipedia for a comparison of open source software hosting facilities.