In case anyone is wondering about the feasibility concerns the FAQ on the web blog is very comprehensive: http://www.eevblog.com/forum/projects/the-ubeam-faq/

In case anyone is wondering about the feasibility concerns the FAQ on the web blog is very comprehensive: http://www.eevblog.com/forum/projects/the-ubeam-faq/ http://www.eevblog.com/forum/projects/the-ubeam-faq/ Overall, it seems unlikely to work, even for trickle charging phones, under anything but ideal conditions.