It's good to hear they will be releasing the source! A tool like this would be rather insane to use by anyone serious about security without the ability to inspect the source. The article states it will be under a "noncommercial open-source license".
I'm interested if they will release enough to reproduce the entire system, or only the client aspect. It's apparently using client-client protocols, but there is obviously some level of discoverability provided by the network that is a monetisation avenue for the company.