Open Atrium 2 is a team portal starter package build as a Drupal profile. What makes it unique is that it's extensible and customizable. This means that you - and everyone - can develop new features for it, add other modules, change the skin, totally re-factor the workflow, and do anything else that you can think up to make Open Atrium meet your exact needs.
These details are provided for information only. No information here is legal advice and should not be used as such.