With a much more clearly defined set of items they measure this is fairly close to an initial version of what I was describing. With that and a standardized legend for the rating for each item (save the specifics for a mouse-over) it would be fairly easy to create a service matrix of selected services.
TOSDR isn't just a good service, it has some momentum and an excellent dataset already. If the right people were to start contributing it could gather quite a lot of steam.
