Filed under: WirelessWow, it looks like someone was listening when we said that Pivot wasn't going anywhere just an hour ago -- Comcast, Time Warner (Engadget's parent company) and Cox have all confirmed to the AP that they've backed out of the quad-play partnership, leaving Sprint alone to awkwardly hang out with Advance / Newhouse, which declined to comment. That must be a fun party. Of course, this also means both of the partnerships Sprint and Big Cable got into have now failed, but that doesn't mean the competit
