The BBC have now issued a press releases which explicitly states that any detection of the unlicenced use of iPlayer will not work by eavesdropping WiFi packets (although they do not discuss details on how they might detect unlicenced use).
This only confirms what made sense to anybody who actually cared to think about it. Any attempt to use mass WiFi "packet sniffing" to detect use of iPlayer was technically hugely challenging (due to WiFi encryption, sheer volumes of information and that mobile devices are licenced by the owner's premises, not place of use).
I would maintain, however, that there is scope for controlling licencing or, maybe, location detection using iPlayer apps & plugins as there are geolocation APIs which, of course, work best with GPS enabled devices but are not wholly dependent on them. However, an iPlayer authorisation system linked in to a TV licence would surely be the better option.
Edited by deleted (Mon 08-Aug-16 09:25:57)