James was at the Science Musuem this morning to launch the app, and there's been a lot of info coming onto t'interwebs. This website seems frighteningly complex to my non-geeky mind, but the second video in particular shows the use of the app very well.
Interestingly, James seems to be part of the driving force behind devising this thing, rather than just being the presenter. In the long interview, he talks about "we" wondering how they could put the technology to use. "We" I assume is the Plum Pictures production team, so here we seem to have a Manlab spinoff.
Plum Pictures must bless the day James signed up with them