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Alps Electric's biometic fingerprint scanner for cellphones

Alps fingerprint scannerWe swear we've already written about something similar to this (and indeed we have), but Alps Electric (which may or may not be a Swiss company — probably not) is working on what they say is the world's thinnest biometric fingerprint scanners for cellphones and PDAs. The idea is that you can use fingerprints as a more secure way to authenticate paying for things using cellphones, but with handsets getting smaller and smaller, where are exactly are they planning to put a fingerprint scanner? The only thing we can think of would be to have the phone's LCD screen double as a scanner, which surely can't be impossible (though it might be expensive).

[Via TRFJ]