If you had feedback for where you were pointing I think most people would get pretty good pretty quickly (excepting people with movement disorders). It wouldn't

If you had feedback for where you were pointing I think most people would get pretty good pretty quickly (excepting people with movement disorders). It wouldn't be very precise, but I think it would be great for lazily triggering multitouch things like zoom/scroll/page-up/page-down/switch-app etc.