I don’t use the new tablo that often because I use Apple TV with the old one. But I have watched some of the streaming channels on the new tablo from my iPad or iPhone using air play but there not away to do that any more for some reason.
We need airplay/miracast/chromecast too
I doubt there would be actual Chromecast support. Google would probably charge an arm and leg, assuming they would even allow it. That’s why few non-Google devices support it.