There were two ideas occupying the minds of all the attendees of this week’s IP&TV World Forum, one very public, and the other they all thought was their own personal secret. The first is what to tell their boards about the move by Cisco to enter the market space, by paying $5 billion to take over the $1 billion revenue NDS, the Israeli/UK based conditional access company which has a special relationship with News Corp. But it was the second thought that is perhaps the more significant, as the IPTV community once again ponders a future without an omnipresent leading force, as Microsoft Mediaroom virtually self-destructs. To most people this is a fact, but not an announced fact, and each…