USA Today recently chose 25 inventions they felt had changed people's lives in the last 25 years. Along with cell phones, laptops and DVDs, USA Today chose iPod as their #8 life changing gadget. It has, they suggest, reinvented the way people walk down sidewalks. Presumably before the iPod, no one had apparently ever heard of, let alone used, the Sony Walkman. But that's just a small quibble. We here at TUAW aren't argumentative. If USA Today says that the iPod is life changing, who are we to argue?