If you use Pivotal Tracker for open source projects, and would like to increase visibility into what your team is working on, you can now do so by making your Tracker project public.
As a project owner, you can enable public access for your project on the Project Settings page, by selecting the Public Access checkbox. The public URL to the project is to the right of the checkbox, in the format http://www.pivotaltracker.com/projects/xxx, where xxx is the id of the project. You can also append a dash to that URL, with a more descriptive name of your project, for example http://www.pivotaltracker.com/projects/xxx-My-Cool-Project.
Anyone you give the project URL to will be able view stories in your project, without having to sign in to Tracker. They’ll also be able request project membership by clicking the Join This Project button.