* Watch out for a new computer acronym - WiMAX. It stands for Worldwide Interoperability for Microwave Access. It's a long-range wireless transmission system that, in theory, can offer data rates of up to 70Mbps over distances of up to 50km. Some see WiMAX as the eventual successor to wi-fi wireless networking. But it's the fact that WiMAX could take broadband into rural areas that is exciting many people, as cable and DSL telephone services cannot reach all rural homes and schools. Expect the first WiMAX modems to beon the market within 18 months or so.