In our research note in March, we noted

Networks are getting deployed and market is being seeded with some of the early handsets. In terms of 4G, there is a strong momentum behind LTE, UMB in its current incarnation is practically dead, and proponents of WiMAX are pushing the technology as a 4G candidate, though it is starting to lose its time advantage.

Earlier today, QCOM decided to abandon its efforts on UMB. Once VZ had decided to go with LTE, UMB had no future. This officially marks the end of the traditional CDMA evolution as well. While WiMAX is in the game, it faces an uphill task to compete on price and performance.