The Google Glass Backlash Begins: The Osborne Effect
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So I guess that in the end I don't really know how this will end for Google. I also don't think BusinessInsider's opinion counts that much, when they tend to write "why this product sucks/why this product" is awesome versions of an article for many other products.
Imagine the alternative: Google stayed mum, let the rumors leak out but never say or show anything, then in 2014 the co-founders take the stage and demo the product, they then tell everyone in the audience to look under their seat for the free one (these are all press members) and tell everyone else that they can order them NOW on the front page of Google.
If Google Glass was even a poor product they would have a solid hit. Also they would have time to fix mistakes.
Also I was just using BusinessInsider as an example, I actually like the Dvorak critique much better -- but as the "lowest of the low" they were my easy target!