We have to confess to being taken aback by the pre-IBC announcement this week that Ericsson has landed a deal at J:COM in Japan, to provide its MediaFirst TV Platform. This is an IPTV platform going for not the first time onto a cable environment, because it went on a cable IPTV environment in China a few years back in 2009 at the Guangzhou Digital Media Group. But this is the first time a traditional cable firm with millions of existing customers have made a switch out of traditional cable to Media First. The key behind this was the adoption of RDK by Ericsson, something it only announced at last year’s IBC conference. We had thought at the time that…