As most Telco based Wireless providers go to LTE, WiMAX will be more of a niche.
Too many 'bell' style carriers have many millions/billions invested in
a) spectrum supported by CDMA/GSM/UMTS and soon LTE (reuse?), and 2G/3G/4G compatibility
b) international roaming agreements
c) handset vendors/chipset vendors (except Intel)
I don't have anything against WiMAX - this is more of a large scale issue. +3 billion GSM based handsets with global coverage.
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www.3gamericas.org/docum ··· 2009.pdfI do think that WiMAX can make inroads in:
- replacement of ADSL
- low(er) cost mobile broadband
- integrated devices
- 'emerging markets'
- rural areas that need data and have none.