Im wondering what the deal is having both a WinRT and a WP platform to deal with. These two should just combine together. Cuz it seems like the vision for WP is to get to the RT state....(since the whole convergence deal they want one operating system for everything). They're basically doing the same things.....
Another thing, the app folders dealy which was a requested feature (dunno how significant)....they already have the groups implementation In the people hub. They could just do the exact same thing for the app list. create a custom app group, then pin it to start, problem solved in that regard......