> Has a handheld scanner been developed yet? Yes - I used one as far back as in 2010 on a science fair where we enrolled people to a research database. A phon

> Has a handheld scanner been developed yet? Yes - I used one as far back as in 2010 on a science fair where we enrolled people to a research database. A phone camera close-up should be enough in the right conditions, but additionally Samsung's Galaxy line used to include and iris scanner, which was just a near-infrared LED and a camera.