Anonnn, while I certainly understand and appreciate your idea to set up an open-source ONLY network, I must bring to light an important fact.. that is while I'm sure that you support the idea of free and open access to all, thus being the idea behind Open Source, your idea contradicts these fundamentals.

By locking out other networks and restricting access, you are replaying the recent situation with AOL Instant Messenger and Trillian. Locking users out will only serve to alienate your cause.