Open source in terms of usage of Bitcoins original block chain. Who says if you develop some new kick ass technology that you have to give it away. that is asinine
I think you misunderstand the concept of what we know as crypto currencies..
Bitcoins didn't just open source for the sake of being a OSC good citizen. The whole concept of bitcoin/any distributed cryptos *relies* on being open source. The concept of crytpos is a distributed , trustless network.
By definition, that requires open source... otherwise it's no longer that. It's something else...
Again, there's nothing wrong with being a centralized currency.. lots of those around...