Exactly, I want to bridge the gaps and all the infighting between chains. There doesn't have to be "one chain to rule them all" since each chain is unique in its own way, just like humans. Chain-agnostic systems like BlockPay and Carbon can bring us together in a peaceful way.
Steem is mentioned in my post above, and in the video as you can see @surpassinggoogle so Steem is very high on my list of supported chains.
Stealth will be included most likely in Carbon v2.5 since I will be making our testnet live to the public in a few months, for a few months, first. This way everybody can beat the hell out of it before we do its official release as a v1.0 product for the Bitshares platform, and then integrate it with Carbon. I'm not going to store my life savings on chain until thousands of people have reviewed the code and proper security audits have been done first, and that takes time. Once it gets their seal of approval, then Stealth can hit the airwaves :)