Beyond the domain of fixed wireless, the timescales to make mainstream commercial devices supporting millimeter wave (mmWave) spectrum are still uncertain. Even in countries like the USA, where there are plans to auction these high frequency airwaves soon, the radios are likely to be confined to broadband CPE rather than handsets for some time. But that is not deterring the more bluesky element of the wireless industry from looking even higher up the spectrum, as far as terahertz frequencies, for their next source of airwaves to support massive capacity and new applications. Companies and academics in several countries have been talking about terahertz R&D for the past year, but the latest discussions are particularly noteworthy because they come from New…