That reminds me of a question I've pondered - what will the impact of Snowden's NSA leaks be on a. the perception of Google Glass and b. on sales?

Indeed. Given Google's insatiable thirst for data, and the NSA's apparent open-door policy with regards to other people's data, will Google glass essentially be seen as a way for the NSA and chums to watch what everyone is doing, all the time? How do you feel about someone in your workplace/social space/anywhere recording you on behalf of the NSA?

Hopefully people will put their money where their mouths are, though that doesn't extend beyond Glass and into Gmail use, Skype, Microsoft, etc. because we generally use them without paying.