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Kim Z Dale's profile photoMatt DelMastro's profile photo
Google+ haters are likely to latch on to that “I’m not a social media expert" quote from Sergey Brin.
Personally, I think that the user experience is going to be a tough thing to get right. There's a good chance that the first few versions of glass will be frustrating and/or clumsy to use... If Google doesn't get the user experience just right within two generations, it'll flop.
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