abma, the way i understand it is, that our buildbot could use the github API, and send a message to the repo, flagging a commit as "compiles successfully" or not.
meaning that the most basic result of the buildbot would be visible on github directly.
given that more people may browse the github repo then watch the buildbot output, it makes a little sense, but it is surely nothing "needed". if it is easy to do though.. should not hurt.