Rokland recently unveiled the RokAir WiFi USB adaptor for Macs using OS 10.3 or higher. The RokAir is billed as an Airport alternative, and uses 802.11b and g to communicate with routers. Rokland says that users can expect to see a 100- to 200-foot area of reception from the device, which is flash drive-shaped and simply plugs in to a vacant USB po
