According to the presentation, 9% of all HTTP on FF36 (for those who didn't disable this data collection) is HTTP/2. Surely there are people here using HTTP/2 in production: How are you serving HTTP/2 traffic?

The listing itself is somewhat muddled ... "Twitter" is an entry, linking to the Twitter homepage, presumably that's responsible for most of this traffic? I found https://github.com/twitter/netty-http2 and https://github.com/twitter/hpack on Twitter's GitHub.