Tim Bajarin at Tech.pinions:
Apparently, Google found out the hard way how tech products get adopted. They lost hundreds of millions of dollars on this project and, worse yet, they soured the consumer market for similar products. Even those with disposable income who could afford to be a Glass Explorer have to feel taken as Google used them as beta testers at their personal expense. I have seen a recent private report that details the damage in consumer minds about Google Glass and, even if a competitor came to market with a cheaper product better than Glass, they would have a hard time getting anything but vertical users interested.
Glass may not be dead, but it's going to be an uphill battle to get it onto the faces of consumers any time soon.