I saw this posting on Sam Knows about the fate of UK Broadband/NOW. They're planning to dump their existing TD-CDMA solution (with which they're serving subscribers in Reading and a few other towns) in favour of WiMAX.
It doesn't take a genius to work out why. Effectively they're offering a DSL-replacement service which doesn't really deliver the goods. A maximum 1Mbit/s doesn't exactly set the pulse racing these days. It looks poor compared to the HSPA offers on the market, let alone cable or DSL options. As a result of the poor proposition they've struggled to sign up customers. So they need WiMAX to pep up their offer.
Even with the move to WiMAX they'll struggle. There are 5 mobile broadband players in the UK each of which will move fairly rapidly to HSPA+ and/or LTE, technologies which can compete well with WiMAX in terms of performance. Furthermore, it's too expensive to roll out national coverage making it difficult to compete in the 'mobile' or 'nomadic' markets. WiMAX, as UK Broadband will implement it, really only works as a DSL replacement. They will limit themselves to local implementations and try (mostly unsuccessfully) to compete with DSL.