Totally into this! I've been wanting to start open-source Fridays to coordinate open-source contributions from multiple companies, but haven't had the staff to make it realistic yet. I have held the org github.com/opensourcefridays which may be redundant but I can offer it for non-githubbers if that helps!

I've always felt '20% time' is like 'unlimited vacation', there should be a mandatory minimum to make it truly effective.