this is kind of interesting too, @nutela. I went to check out the Swirlds/Hashgraph SDK, and saw this message:

The SDK is free for anyone to download and play with. You can even experiment with building applications on it. If you would like to deploy your application, contact us at sales@swirlds.com

And from this post, "Is Hashgraph Technology Just Hype, or Can It Dethrone Blockchain?":

"Until Hashgraph releases the core code as open source, and they are able to gain a real user base it poses zero threat to blockchain," said David Moskowitz, co-founder and CEO of Indorse, a decentralized professional network company based in Singapore.

"There are dozens if not hundreds of new blockchains claiming to be superior to Bitcoin, but until they gain significant community support and are truly battle tested I do not see them as more than long shots," he said.

So at this point all that is available for Swirlds is a closed-source library, and I've gotta contact their sales department if I want to deploy my application?! Not to mention, of course, that Swirlds even has multiple patents on the future of the "free and open" blockchain killer, which of course is their private solution, wait for it... Hashgraph!

Hmmmm......... yeah, unless I'm reeeeeeaaaaalllly missing something here, I think I'll pass.