Statamic actually does include an Admin interface where you can do (basically) this. We really like having the Git version control and we really like the Github editor, which is why we don't use the Admin pages, but they definitely exist in Statamic already.
That is certainly helpful. The website makes it confusing as to whether I need to host this somewhere, with every client site, or if I need to run a single server and point things to it, or if they do the hosting and run a service for me? What exactly am I paying for when I buy this?
Presentation issues aside: I think it would also be neat if I didn't have to host/maintain/setup anything at all. Simply point a service at a (my) github repo where I can commit my client's sites, and let the service take care of the rest, providing a nice admin for me and something I can do for my client. That way, I don't need to have a server setup and running PHP if they don't need it. Makes it less expensive for me to setup and less expensive for the client to run.
It could store my templates, so I could easily fire up a new service and send a link to the client. Hell, maybe even use a template each time and say: "Here, provide your copy while I go build some stuff. We'll marry them together as we complete our respective sides of the agreement."
If that's where Statmatic, Stamatica, err... Statamic, is going, then I think that's pretty neat. But, it's not terribly clear at the moment.
Statamic is both a content management system (in that it has a nice, responsive, client-friendly admin area for managing content) and a website-building platform (in that the admin area is completely optional if you're someone that's comfortable with writing content files, and you can fully create and maintain a site easily without it). A license gets you the software itself and allows you to run it on one domain.
At the moment, there's a folder where you place all of your content files. I've seen people play with syncing that up with systems like Dropbox and even maintaining that folder as its own git submodule. There's no ability to do that automatically at this time, but I bet someone could figure out how to make that happen.
It seems out marketing message could be a bit more direct in that instance, certainly noted!