No, not unlocking the iPhone from AT&T (JAR!), unlocking the iPhone so you can use it. Slide to unlock, passcode unlock, that kind of unlock. Okay, now if you're still reading, Apple Insider has found some patent filings that suggest Apple is exploring things like biometrics (i.e. it reads your fingerprint while you slide to unlock), facial recognition (i.e. uses the camera to analyze who you are/might be) and pattern matching (i.e. choose unique shape combinations as a passcode). But it doesn't stop there:
Apple goes so far as to suggest the possibility of recognizing the user's distinctive voice or even collecting DNA samples to recognize a user's genetic sequence. Biometrics could also be context-sensitive and detect the shape of a user's ear before allowing a call to go through, for example.
Of course, many, many Apple iPhone patents have yet to see the light of day, so there's no telling when, if ever, this functionality will be built into future iPhones. Still, it's always nice to Apple is working on possibilities for those future iPhones.
But we have to admit, some of this is just so sci-fi we kinda want to see if they can really do it...