Good lord, I've been neglecting my duties. The latest release of Saros occurred almost a week ago and I've said nothing on it here.
Among the fixes and improvements, version 11.2.25 introduces a new feature: multiple project sharing. Until now, Saros has pretty much been limited to sharing a single project, but now that limitation has been lifted. Saros can now share many projects from the beginning of a session, or even allow the user to add projects into the existing session. Those Eclipse users who have a "project of projects" should see great benefit from this new capability.
Another little bonus in this release is the ability to use your Google account with Saros (either gmail.com or googlemail.com).