I look forward to seeing the results! As a freelancer I'll have clients who I work for regularly, and clients I work for once in a blue moon. A way to archive projects (and not pay for them as GitHub makes me) is crucial - because on my books I have 30+ clients, and can't lose the info in case they come back in 2 years for a change to the system.
I'm on it now as a paying customer, with one project entered :) The client's struggled with the UI (I haven't figured out why) so I haven't tried with any others yet.