This is pretty interesting. Github really is becoming the social network that MS never seemed to be able to create. We already use it as our portfolio of work for potential employers. We collaborate with fellow enthusiasts and maybe even make new friends. We host our websites from it. Abuse it to store binaries, too. And now, along side, source code we can use it as a CDN of sorts to serve packages, for free, sounds pretty great. All they need now is a place to get coding questions answered (a la stackoverflow) and along with Github jobs it could be really compelling.