I'm really digging all the Visualization/UI/UX stuff that GitHub has been doing. I hope they keep it up.
Me too, but I desperately want real metrics that demonstrate real work being completed against a project. Otherwise, my darker side fears it is the end of the industry as we know it.
Specifically I'd like to see us semantically identifying code objects and rather than doing commits in lines of code or whatever, print things out like "submitted a highly connected object" or "made amendments to some fields on a class" or "updates comments in a text file".
The current GitHub metrics reflect all of these changes as identical little "events of participation" but they're not indicative of the amount of work or effort put in to them.