Well, it's a nice idea that thousands of us have had before, but why isn't an MVP out yet?
We had a similar idea at http://www.appnowgo.com. Our focus is to make it even less technical and easier to use. We're giving out a lot of beta invites and would love some feedback.
That's a great question :)
I really don't know, I know its not perfect yet, but it'll never will be. I guess he wants to finish with several core features, polish things, designing the app..
It looks like its USP is that it exports the php and mysql with an installer.