Schneier's conclusion? [Emphasis added]
To me, the real significance of this work is how easy it was. The people who designed the Nike+iPod system put zero thought into security and privacy issues. Unless we enact some sort of broad law requiring companies to add security into these sorts of systems, companies will continue to produce devices that erode our privacy through new technologies. Not on purpose, not because they're evil -- just because it's easier to ignore the externality than to worry about it.
I've said it before, and I'll say it again: if you're concerned about safety, privacy, and security, you should read his newsletter regularly (it's free, too).
He also links to one of Rich Tennant's The Fifth Wave cartoons (if the name's not familiar, his work graced most of the "... For Dummies" books). The panel zings the TSA... go take a peek.