LG Iris Identification takes a photo of the guests iris, encrypts it into a number code, and presto, your eye is now your key. Once we heard about this we ran down to Nine Zero to check it out. The technology worked perfectly, and it was a very sci-fi experience.
Not quite sure how I feel about this one, though I like the idea that, once you've been scanned, you can skip the checkin altogether: The hotel just e-mails your room number, and your key is, well, right in your face. But it's still a little oogy to me--if you've ever read Dale Brown's Angels and Demons, you're sure to know why!
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