I think a lot of these people who create concepts of its features that exist on WP7 or Android etc. should just switch to that platform. [...] It's just that th

I think a lot of these people who create concepts of its features that exist on WP7 or Android etc. should just switch to that platform. [...] It's just that there's a chance they can cause more problems than they solve and become annoying. Sure there's a chance of that, but the question is whether that actually does happen, and you'd have to examine it rigorously (ideally with a working prototype) to know.