This is interesting. In "Who's the most wired nation?. ITU speaks, we scratch our heads [The Register]," author Andrew Orlowski asks what the ITU means by wired. Andrew quotes Dan Gillmore saying
"few people are actually doing much in the way of mobile Net communications [in the USA] except WiFi"
and continues
"whereas the Nordic countries can't stop tapping out text messages, the Japanese are going ape about sending each other pictures between their phones, and no one at the ITU wanted to say one was worth more than the other. "
My recent (admittedly non-scientific) survey of mobile users in the UK and France complements Orlowski's observations of Sweden and other Nordic countries. In London, the friends I stayed with did not even have a computer at the house, but regularly "texted" other people (making important "which pub should we meet at?" plans) via mobile phones. Every other television commercial seemingly highlighted the "cool" stuff they could do with their phones, even as my friends were interrupted during Dirty Dancing by yet another text message...this one from a friend in New Zealand.
While the US may have higher penetration of computers in the household, mobile use is less prevalant. Even among my friends I'd consider "wired," most of them use their mobile phones as, well, phones, with the occasional use of the web functionality to get important information like which theaters are showing the latest Rupert Everett movie at which times. In other words, it tends to be one-way feeds of information, rather than two-way communication.
Instead, our communication tends to occur sitting in front of our computer terminals and posting in various eCommunities, via IM, or even by e-mail. I'm not sure what the significance of this is, other than the status quo bodes darkly for the continued decline of physical fitness in the US. For me, I'm going to web-enable my RIM Blackberry, hope I don't develop carpal tunnel in my thumbs, and get out on my bike for a few hours. If you need me...text me.