Ever since OpenSocial platform was announced by Google I wondered who will benefit the most from cross-social-network applications? Probably not Google - it was forced late into the game by Facebook and realized that market will not accept another closed platform for the social apps. Could it be MySpace? Surely it will be a nice addition to the kaleidoscope of widgets crowded on user's pages. And only today I realized the major benefactor - Ning.com with its own ecosystem of small social networks. One-time effort of creating a hosting container for the OpenSocial by Ning will be realized by all of the hosted networks. Simply brilliant combination of open standard and Ning's business model!