Mixed feelings about this one. On one hand, it's better than walking around looking down at a smartphone the whole time. Emasculating, as Sergey Brin called it in his sales pitch - I can see where he's coming from

But on the other hand, privacy is a serious concern here. If I see some guy filming me (or, let's say, airport security, or a kids' playground...) with a smartphone, I am aware of that, and can tell him to GTFO if I so please. With the Google Goggles, there's no way to tell if he's filming or not. Even if it had a visible indication that it's filming, it only takes one misguided techie to open it p and cut a wire or two. So I tend to agree with
this article, expecting widespread bans - in fact, the first ban has already popped up.
Now, if it didn't have the camera, then it becomes just cool

Would probably make the thing quite a bit more compact, too.