San Diego is a hub for wireless companies and businesses there tend to be innovators in using wireless technologies: This piece looks at how one real estate agent uses Verizon's high-speed mobile network and how a handful of businesses use Wi-Fi networks.
One interesting Wi-Fi application is at One America Plaza in San Diego. The developer of the commercial office building offers Wi-Fi to tenants for free. He charges tenants for wired broadband access which is built in to the building but figures that Wi-Fi is an "amenity" so should be offered without cost, just like elevator service. An already-built Wi-Fi network sounds like a super bonus for any business hunting for new office space.