Consulting firm WiMAX 20|20 announced a new WiROI Business Case Tool, offering network operators and equipment manufacturers a comprehensive analysis of the capital and operational expenses for deploying a WiMAX network. Developed through experience in actual network deployments, the WiROI Tool is designed to model a variety of deployment plans and service models. The new WiROI tool is currently in use by Southam Chile and Sun Microsystems, among others. Release