The article focuses on blending communication & code. While it's great to build tools that blend them, we can't pretend that other channels and mechanisms won't be used. Hopefully github will see the importance of doing that rather than forcing everyone to live inside a github world. Back in 2004 I did a class project called Open Sources [1] at MIT that looked at blending public mailing lists with public CVS archives (no github at the time). Years later I see some of these ideas becoming more popular in coding tools -- my take is that visualization of group history and individual contribution will become critical as catalysts of open-based works. These top-down summaries provide a map & narration rather than autistic reverse chronological fine-grain lists, as well as giving a broader overview as to who an individual is and what they have achieved.

[1]: http://smg.media.mit.edu/projects/OpenSources