The worldwide user-base of WiMAX had almost reached 1.8 million subscribers by the end of last year, according to this article. It has most likely crossed this figure by now. However, the technology has yet to reach a tipping point with operators waiting to see who else adopts it.
The “Tipping Point” in this case, will likely be the result of something very small and insignificant. Or it could be the result of a major change. Like the spread of Wimax in nations like India and China, which with their huge potential, could create an incentive to include Wimax support in more devices.

