New generations come along about twice as quickly for WiFi than cellular and so we should not be too surprised to find the next version, WiFi 7, being presented even before the WiFi 6, or rather its 6E extension, has attained general commercial availability. But this time round there is an extra urgency in the WiFi camp because of the sense that with 5G cellular has stolen a march and threatens to intrude into its territory, as well as take a lead in some fundamental performance parameters. We recall how in April, London-based mobile analytics firm Opensignal reported that 5G download speeds exceeded those of WiFi in seven out of eight leading countries, typically by a factor of three or…