On one of my many trips to Fry’s this weekend, I ran into an old buddy from 3Com who now works for Wi-Fi champion Atheros, and we quickly ran down 802.11, 802.15, 802.16, UWB, Intel’s wireless strategy, and the limitations of IPv6. Little chance encounters like that are what’s best about Silicon Valley, but on reflection I didn’t learn much from it except that it’s nice that I don’t have to write code for a living any more.