Mortimer.CA writes "An interesting article on how cell phones are changing the way people interact and get together in Japan. Some interesting quotations: 'To not have a keitai (cell phone) is to be walking blind, disconnected from just-in-time information on where and when you are in the social networks of time and place.' And the new social faux pas: 'One college student I spoke to described leaving one's phone at home or letting the battery die as "the new taboo."' The article mentions the book Smart Mobs which was mentioned on Slashdot before. I keep thinking how Marshal McLuhan said that our new inventions change the way we view the world. This is 'obvious' now, but was quite a new idea when he thought of it. In the 40s and 50s you "needed" to get a (land line) phone, then it was cars, email, and now cell phones. What's next? Is it simply a matter of keeping up with the Joneses?"