Also, virtually all Manhattan residents live in apartment buildings, so they need to get though two locked doors; the front door to the building and the door to their actual apartment. Pretty much all buildings use a lock/key that can't be (easily) copied (Mul-T-Lock or similar) for the front door, so unless you're going to break into your own lobby, you're still up the creek. And if you live in a building with a doorman or live-in superintendent, they frequently have access to a copy of your key.
I don't see this catching on in a big way.
Actually, the Inquisition wasn't formally abolished until July 15, 1834, quite a while after the founding of the United States. (http://en.wikipedia.org/wiki/Spanish_Inquisition#End_of_the_Inquisition)
Research indicates that this is not the case. In areas where speed limits are not enforced, civil engineers find that 85% of motorists drive at what most would call a prudent speed. In fact, in many municipalities, speed limits for a given road are determined by observing traffic and determining the limit based on the 85 percentile speed (assuming, of course, that generating revenue from speeding fines is not part of the equation). Google "85 percentile traffic speed" if you're interested.
I guess I'm missing the point. Isn't it better to actually know why the fuck you ought to be onstage instead of merely looking that way?
In what universe is an iPhone a "long-battery-life" device?