A media hack is different from a software hack. Podcasting is a media hack. Sure, there was a little software needed to get the bootstrap going. But the innovation was the combination of HTTP, MP3 and RSS. It's like a S'more, which is a "cookie hack."#
If I ran Twitter, I'd create a developer toolkit for creating setups like screen2.io. You'd specify a YouTube video. The chat part of the interface would just be Twitter, so your Twitter followers would read what you're saying (or not, it would be a preference). Now I'd have a way to watch live video feeds from YouTube in Twitter. And of course the "developers" wouldn't be super techie devs. They would be people who are good discussion leaders, and people who are good at keeping spammers out. You could share revenue with them to make it really grow. You could call it twittertube. #