Isn't this the same thing as TurboGears 1.x which came out six years ago? I remember it being a framework composed of best-of-breed libraries.
But my main point was to have a fluent workflow.
That's also why I want to add a mongoDB backend. (as well) I am also thinking of moving the Views completely to javascript (ejs would probably be my choice then).
That would result in a client <--JSON --> Server <--- JSON ---> Database szenario. Which looks pretty clean, at least to me.