Code in the cloud with your favorite OS X text editor
blog.nitrous.io
blog.nitrous.io
Also, why would somebody choose this over editing files locally and committing to github? People can do that in one click if they want.
But the benefit of editing locally and committing to Github is that that's not typically work flow - with Nitrous.IO for Mac - you can edit code, run tests (or refresh a page), make more edits, run tests again, repeat, and when you're done, then commit to a remote git repo (all with your dev environment being in the cloud, making it accessible from anywhere)