"Let's say you walk up to a restaurant. As you look at it, you see a virtual waitress outside. The you can see the menu floating there, interact with virtual food models, interact with a fully animated and articulated intelligent agent. This all has to load dynamically in a an "AR Web"-like environment (no way you're going to download and install an APP per local brick and mortar)."

Maybe I'm just getting old, but this all sounds tedious and cumbersome compared to just having a menu stuck to the front window.