Rough thoughts on Google Glass
I think it will be a game changer. Lots of use cases, that’s not the problem. Examples on their website, simplify existing use cases (phone, mapping, directions, media), create new ones (medicine, overlay of information on everything terminator style), etc.
The key to success will be
1) Making it super simple to use for consumers. Eg camera built into the frame, activated based on sensors, etc. You shouldn’t have to look up to activate it. One way to think about this in smartphone metaphors is, Glass today is like the old smartphones (Palms, BBs, WinPhone) and it needs to be like the iPhone.
2) Not socially awkward. They will become acceptable as lots of unacceptable things have become (social norms change), but steps can be taken on marketing, PR & privacy fronts to catalyze this change.
3) Obvious one, but make it a simple platform for people to build on top to create amazing use cases with it. For e.g. see what developers did with the Kinect sensor.