The idea of wireless USB sounded compelling, given the massive success of its wired equivalent, and consumers’ love affair with discarding cables. But the first stab at a standard, introduced in 2007, made little impact, partly because the effort got tangled up in a long-drawn out industry squabble over rival approaches to UltraWideBand (UWB). Now the USB Implementers Forum is trying again using a new technology. This time, its platform is called Media Agnostic USB (MA-USB), which runs the USB protocol over a variety of wireless standards and frequencies. Last time around, failure was partly down to the attempt to specify a single wireless standard, WiMedia, an implementation of the ultra-low power UWB. This was a brand new and unproven…