PLN 16

I read about these "Google goggles" and thought they are kind of interesting, but I'm confused on what they do? I saw that you can take a picture and it will translate it to text and do a Google search.But is that all it does? That seems useless. Does it do anything else? I think it would useful for some things, but its pretty much useless for most people. I think if it did other things, it might be useful. And maybe it does and I just haven't looked hard enough.