The Economist writes about WiMax alternatives:
Both IPWireless and Flarion technologies combine fast, Wi-Fi-like internet access with the wide-area works anywhere coverage of mobile phones. Slot a suitable card into your laptop and you have a broadband connection you can carry around. Hitherto, such technologies have been used in a few regional networks and small-scale trials. Now they have made the crucial breakthrough to deployment in large-scale, national networks.
Does this mean that WiMax will be squeezed out by the other technologies it has unwittingly boosted? In fact, it looks as though there is room for a mix of technologies, each with its own strengths, depending on the availability of spectrum, the regulatory regime, and the needs of various types of operators.