There's a very, very large difference between eyeballs on a person and wide-scale archived surveillance. The Supreme Court ruling against warrantless GPS trackers on cars (whereas warrantless 24-hour surveillance is okay) is an outstanding example, and that one ignores the fact that human memory is pretty crappy when it comes to evidence.
That being said, I think widespread cameras are simply something people are an inevitability that people are going to have to get used to, warts and all.
My point is more that pervasive, individual, recorded surveillance is a different beast than random acquaintances seeing you around town.
It's really the scale of the thing -- YouTube and Ustream and the like are going to have some serious privacy concerns when masses of people want to start lifestreaming.
Wait, do you think that everybody is going to be uploading everything they see to YouTube? Different people have different comfort levels about what they put online which means that being tagged in Facebook photos can often be embarrassing, but very few people have zero desire for privacy and I don't see share-by-default taking off for lifeloggers.
I see it becoming vastly more prevalent. Maybe not when Glass comes out (particularly due to data caps,) but I imagine that surveillance/sousveillance will be notably less taboo in 10 years.
Of course, I should disclose that I became greatly interested in (at least partially edited) lifeblogging once I saw devices like the vaporwared Zion Eyez[1] or the Memoto[2].
I attempted to start recording my drives home with my phone and publishing them on YouTube, but I'm not committed enough to keep it up until it becomes frictionless. This would be a perfect example of the potentially scary surveillance -- if a number of people start autopublishing dash cam recordings, it creates a way for people/organizations/governments to data mine someone else's data for their own surveillance purposes.
That being said, I think widespread cameras are simply something people are an inevitability that people are going to have to get used to, warts and all.