WSJ on WiFi and the falling prices which is leading to increasing adoption:
A basic wireless network requires two devices, a base station (stores and retailers call it an “access point”) and a wireless card for a laptop or PC. In both cases, prices have been sliced by a third in the past 18 months. Base stations go for an average of $163, down from $245 in early 2001; wireless cards, which let laptops and desktops communicate with the base stations, have sunk to $74, down from $122, according to In-Stat/MDR, a research group in Scottsdale, Ariz. Consumers can find even better deals on the street. Gemma Paulo, an analyst at In-Stat/MDR, says she recently saw a wireless card on sale for $30 at a local electronics store. Aside from buying a base station and wireless card, the only additional expense is the monthly Internet connection, typically $40 to $50 for broadband access.