I’m happy to see a niche decentralized thing from Jack more than if it was another commercial start-up. And I have nothing against yet another bluetooth chat. But I’m not impressed. In the whitepaper nothing is written about spam protection, so it wouldn’t work as a reliable P2P app at scale. And the UI… It’s mere a toy for Jack’s personal nostalgia about “the good old times”. And nostalgia driven development doesn’t work in general, I would say.