The biggest thing I want from GitHub is the ability to search commits. GitHub are pretty good at search (their issue search is fantastic, and their code search is decent enough) - but the data I most want to search are the commit messages in my repo.
I understand this will be a huge amount of data (they must have hundreds of millions if not billions of commits by now). I'd be perfectly happy if this was only available for paid repositories.
The ability to then further facet and filter searches by author, file, directory etc would be unbelievably useful.
Oh, and while we're talking pony requests... I'd dearly love to be able to use gists within the scope of an organization. It would be fantastic to be able to share code snippets that were only visible to other organization members (and searchable and so on).
I understand this will be a huge amount of data (they must have hundreds of millions if not billions of commits by now). I'd be perfectly happy if this was only available for paid repositories.
The ability to then further facet and filter searches by author, file, directory etc would be unbelievably useful.