Wired reports on how "security flaws in the new RFID-powered [Nike+ iPod] from Nike and Apple make it easy for tech-savvy stalkers, thieves and corporations to track your movements."
While I'm not surprised that a product from a team-up of such notable corporate bastards has problems, the carelessness here - the system turns your running shoes into radios transmitting uncoded "here I am!" messages to range of about 60 feet - is notable.