Why seriously? Why build a web browser? If Chrome is to make the web a better platform for serving ads, then Glass is to make you a better platform for receiving ads. And in the process, they trade you some utility for being a marketing sponge.

And also push computer vision and pervasive HCI further forward. Sort of a weird deal, but overall... not wholly awful. Those patents will expire eventually!

Agreed as it sits now... but maybe the current form factor is the limit of today's technology. And maybe the insights they get from even attempting to develop that kind of interface puts them 5 years ahead when someone invents a holographic projector that clips onto your shirt collar. But if you don't even try it, then you don't even get the "maybe".

We don't have the technology to make volumetric holograms, the closest thing is some persistence of vision-like system made by a Japanese company that's very low-res and can make you blind if you stand too close to it.

How many google ads do you see on your phone? How many google ads would you see if they were in your HUD glasses?