Back in April I posted about interactive billboards from IBM. Back then they only recognised colours, but I pondered on where this could go. In fact, here’s exactly what I pondered all those long months ago: “…but seeing as it’s all driven by software, the possibilities are endless. Imagine using facial recognition software to decide whether the ad is being viewed by a male or a female and then displaying a different, gender-specific message?”

Well…the time for pondering is over…