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At a hackathon we developed an NFC app that can scan food packaging and give you the instructions and a kitchen timer: http://www.youtube.com/watch?v=sJ92FMl1qcE (I know, its blurry...)

After hacking with it, I have to say it is much more reliable than QR code scanning / barcode scanning. No problems with low light, shaking device etc. Replacing QR codes is probably not a very exciting use case, but I could see it happening.

Isn't it much more expensive than QR/barcode though? Since those are just printed on?

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