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.