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That's a good point. I guess I was more concerned that other companies (or unscrupulous app developers) might abuse the ability to place ads anywhere. As long as Google exerts strict control over ad policy and placement, it's a win-win like you said.

And they already have relevant patents, in a different arena: http://www.readwriteweb.com/archives/google_could_soon_augme...

I've actually been waiting for such a functionality for ages - except I would use it to adblock everything, even in real life.

No more pesky ad noise == quality of life significantly improved.

Yet again, Steve Mann was there first: http://cyborganthropology.com/Diminished_Reality

Sorry for the monomania, but the man really did pioneer a huge chunk of wearable computing and AR.

That is nice. Time to read up a bit about this man. Thank you.