Wow, thank you! Very interesting! Quite odd that none of my follows mentioned this going live, must be an issue of too many github issues.
Time to dig into this a bit!
edit: For anyone else perplexed and surprised by me, seems `floodsub` is their moniker for the new tech, and it was (in part) merged in here: https://github.com/ipfs/go-ipfs/pull/3202
This is really, really cool! Also, if this implementation is robust and performant, this is huge for IPFS.