I think it will make us smarter. Image walking in a forest, you have no clue about the names of the trees. With augmentent reality showing you the name of the tree, you will learn the names I think? Or maybe you just keep relying on your phone, I agree that might be possible also, but you will at least have the oppurtunity to learn.

You can perfectly do this with the popup-blocker in firefox! I use this all the time.