Hi Gregg, thanks for the comment and questions. Definitely the things you highlight in the second and third ways the device is useful are important objectives for the device. The first one is a maybe - only because you have to be careful about distracting some walkers while they are walking and thus cause them to fall - there is quite a bit of research done on this usually called "dual-tasking"in the literature. And for the fourth I agree, theoretically in future, after lots of testing there could be some kind of intervention applied by the frame to prevent falls.
Hi Kate, I should say that I think running a pilot program is not a lightweight experiment as there would be considerable work that would be needed to get the tech to a pilot ready state and then build a fleet of prototypes. But for a pilot I would envision 30-40 walking frame users using the device over 3, 6 week periods. I'd be open to an alternative lighter-weight experiment!