Rick and Roll writes "In a story on Wired, entitled Feel Free to Jack Into My iPod, an iPod owner shares experiences he has had with other iPod owners, namely the plugging of his headphones into a stranger's jack. It began when a woman in her 30's walked up to him while he was on a walk, unplugged her headphone jack from her iPod, and motioned for him to plug his in. They then listened to each other's music for about 30 seconds. He has then shared with about a dozen iPod listeners, with most of the strangers reciprocating. According to the article, the practice has also cropped up in other communities. Listeners acquire tastes for different kinds of music, just like on internet/LAN file sharing networks. An interesting read."