The Sony Xperia Touch ought to be able to do this. That's a nice projector-based touch system.
Possible application: interactive restaurant menus. Some places have tried handing out tablets, but you have to have someone hand them out and retrieve them. The system has a camera, so have it recognize open space on the table and people in seats. Present people with menus projected on unused table space. Plus you can offer customers games while they wait.
Possible application: interactive restaurant menus. Some places have tried handing out tablets, but you have to have someone hand them out and retrieve them. The system has a camera, so have it recognize open space on the table and people in seats. Present people with menus projected on unused table space. Plus you can offer customers games while they wait.
(Inevitably, someone will put in ads.)