In late 2002, my first, agog visit to Tokyo, I noticed young people browsing the Internet on the street on their keitai (cell phones).

Here in New York as far as I knew, people only gabbed or texted on their mobiles or maybe checked stocks, that was it.

I say as far as I knew, because at the time I didn't own a cell phone. But I've always had a roving eye for pop...