Yes GitHub is huge - I just say this doesn't automatically mean SF is now getting small. Nothing against GitHub, it is the nicer solution for many projects. But for example for any project with lots of media data I still prefer using SF + svn. Or for any application that is mainly targeted at normal users and not foremost at developers using SF is also great. And it's very complete - you don't have just the usual things like code-browsing and bugtrackers, but you can for example also host a php-forum on SF.