I think it's important to note that Google Glass was not really a VR system—it was AR, essentially overlaying a HUD on top of reality. I can see many extremely useful possibilities with this that just don't apply to VR (which, indeed, I think is going to be most useful for entertainment and a few other niches).
AR can help with navigation (overlaying the directions right on your field of view); with social interactions (facial recognition, even locally, can identify people already in your contacts, and remind you "you wanted to thank her for that birthday present", or whatever); with learning about the world (look at a tree, a flower, a bird and ask for an identification)...
And that's basically just taking apps that exist now and imagining them integrated into AR glasses.
(Yes, there are definitely concerns about things like privacy, with the possibility of having cameras on our faces all the time; I am hopeful that we will find solutions for these, but don't have good ones off the top of my head.)
AR can help with navigation (overlaying the directions right on your field of view); with social interactions (facial recognition, even locally, can identify people already in your contacts, and remind you "you wanted to thank her for that birthday present", or whatever); with learning about the world (look at a tree, a flower, a bird and ask for an identification)...
And that's basically just taking apps that exist now and imagining them integrated into AR glasses.
(Yes, there are definitely concerns about things like privacy, with the possibility of having cameras on our faces all the time; I am hopeful that we will find solutions for these, but don't have good ones off the top of my head.)