Just saying, but any exchange could list any altcoin, mastercoin(omni), or counterparty assets. The coin creator doesnt really have to approve it. I mean it is nice if they do, but its not really required.
Good point. I guess the more the merrier right?
haha, well I am not sure about that, Just I mean I could open an exchange tomorrow that only sells factoids, but that doesnt mean factom endorses what I am doing.