I had to use Cloud9 a few months ago to populate a new repo for a small project I wanted to share. With today's changes I wouldn't have needed to use Cloud9. Being able to add files is long overdue and I wonder how much it was to stem the tide of users using third party sites to populate github and thereby becoming entrenched in a development/publishing workflow that only used github as a storage layer and not somewhere where you would spend time or send others to the github website.