Earlier quoted context omitted.
Yeah this could make putting Ikea furniture together alot easier.
Like that's every going to happen. Online training though - a whole other thing. Imagine math and physics with interactive 3D visualisations. Or for kids, a virtual version of one of those 30-in-1 electronics teaching kits. And so on. If this works it could be a game changer, and it could also create a whole new app industry. I just hope the technology is non-crappy, and it doesn't get managementised into uselessness…
An electronics teaching kit might not work on a tablet (but would in VR), and note that any kind of really fluid manipulation of a virtual environment is going to involve a whole additional technology that gives precise locations of your hands (at least). The HoloLens allows a few simple gestures, not the ability to handle virtual objects in many degrees of freedom.