I somehow doubt that this would work for real work. The desktop/paper metaphor of the monitor is an important part of its usability. Not sure whether "spatial c

I somehow doubt that this would work for real work. The desktop/paper metaphor of the monitor is an important part of its usability. Not sure whether "spatial computing" can invent something equally workable for the stuff people usually do on a computer (besides 3D gaming). It is conceivable that completely different categories of workflows will become available. In the end everything we do on a computer has been invented at some point or another. I guess there are plenty of eager early-adopters and fanboys that will be more than happy to report on their magical productivity boosts. In any case, assuming that the above caveat is not an issue, if the main real use case is as external monitor replacement I would think that suitably optimized hardware would deliver much better value for money. No need to wear a computer on your head when you need to carry one on your laptop (even mobile) anyway.