An Australian wireless ISP who has operated a WiMax network for more than a year unleashed a blistering attack on the protocol, calling it a "disaster" and that it "failed miserably." Unfortunately, the article provides little detail on exactly what frequencies were used (WiMax is a catch all term for the protocol, which can use several different chunks of frequency spectrum). The interesting thing about the comments is that the firm is planning to deploy more traditional WiFi as part of their wireless network. This article illustrates that wireless systems are not a panacea, and that they have to designed and engineered carefully to get good performance.