E.g. the "people" app on WP8 is quite a mess. It's not at all clear how to get around in it.I just looked at the People app. I don't find anything confusing in it at all. Virtually everything in there is tapable. I didn't see a single thing in there that I thought someone would be confused about (at least with respect to the UI -- it's a bit confusing as to what content gets streamed in, but that has nothing to do with Metro).