The thing that bugs me about WiMAX is the NIT's have a non trivial list of issues that need work.
Here they invest time, money, and marketing into a new feature that will have little to no impact on the current deficiencies or appeal of the device.
WiMAX is doubly silly since, like it or not, EDGE would have probably maxed out the bus bandwidth of this device and allowed it to interoperate with data networks in almost every country.
That would have immediate impact on the community and appeal of the NIT's and solved an issue that many people have with the device.