I think without a way of 'monetizing' maemo select it will not be an app store, just more of a showcase, like the Tableteer site on N800 home screen. An AppStore I view as a place where developers can 'sell' software, if Nokia port Ovi store from s60 and s40 to maemo which I am sure is a possibility then that becomes a real AppStore.

Since there is a web based Ovi Store there is no need to port anything simply add an Ovi category.