Using the next step will guide us to mobile devices that can accept motion, project and have a camera.

Nexus: http://www.slashgear.com/samsung-unveils-pico-projector-accessory-for-galaxy-products-04259472/

IPhone:http://gizmodo.com/5907166/100-portable-pico-projects-full+iphone-resolution

Windows Phone: Many

What we build today is a solid POC and will guide future development and libraries.  I think there are things that are advancing quickly.

Mark

AugmentedDeveloper.com