I'm oldish, so maybe I'm biased, but this sort of product seems like something no one will want, outside a few technophiles, but that industry desperately needs you to want. It's like 3d TV, a solution in search of a problem because the mfgs need to make the next big thing with the associated high margins.

To me the phone is a pretty good form factor. Convenient enough(especially with voice control), unobtrusive, socially acceptable, and I need to own one anyway because it's a phone. I'm a geek so I think this tech is cool, but I see zero chance I would use one, even if it were a few steps better than it is.