Cable companies drop Pivot, break up with Sprint Nextel

Wow, 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 competition in the space is over: both Time Warner and Cox say wireless is still in the cards for their companies, but Pivot was just too complicated a venture. Comcast hasn't said anything yet, but promised a comment tomorrow sometime between 7AM and 11PM.