[Disclosure: I patched and released version 0.01027]
A very complete, consistent interface to the Github API without too much sugar gumming things up. It works well with Github pagination and provides ample access to the HTTP layer for debugging and error handling (for example, you can check for a 404 code rather than parsing a "not found" message). If any API call is missing you can easily write your own request.
Version 0.01027 introduces support for request caching (aka "conditional requests") to reduce API calls on the same resource.