Quote... 5dmkiii ... ... developments ... coming forward on this platform.<- I'm glad this has been clearly stated!
I think ML should put this type of information very prominently on the home page - e.g. "Want to be on the edge - get a 5D3!!!" kind of thing. And do not be embarrassed to monetise the promotion - it truly would appear to be the best platform for advanced techniques, right?
I also believe there should be a user-friendly website built to help the simple photographer navigate and select the features that may be relevant to their method and their gear. I can see a clear potential for monetisation there too - e.g. a site that prompts to create and install a personalised custom build tailored to a registered user's profile. I personally only want a few useful features and rather not get confused by the choice between various semi-functional builds vs the latest "experimental bells and whistles" version irrelevant to my camera model and my requirements. E.g. I'd rather pay to get a simplified yet customised build that does no more than what I want and *not* have to study any esoteric complexities.
I believe that the majority of less technically minded photogs will be prepared to pay the price of a memory card to subscribe to such a personalised service as they may be intimidated by the complexity or lack of features in the full builds - the 2 year old one that's currently presented as the safe one vs the latest more complicated one. Think about it - a services that charges more for fewer but relevant features rather than trying to be an "All things for all men at all times" type of thing!