Yeah but I still can't imagine why I'd want to know the Twitter bio of the people around me.

It's a bus/train/supermarket/DMV line, not a mixer. If it were a mixer I'd also be more interested in talking to the person than reading their profile and recent tweets.

I get how such technology would be impressive from a "oooooh cyberspace!" perspective, but that only reinforce's the point made earlier: Google Glass was very impressive tech that had a lot of technically interesting applications that were nonetheless mostly pointless.

Even so, most of the time when I'm out in public I like to be anonymous. Since I'm not famous, that is extremely easy, and I like it that way.

That works in some places I guess. In some towns, either everyone is going to know you or you're going to attract attention as a stranger.