While you can write OpenSocial apps that run solely in JavaScript and use the Persistence API to store data on the container, many OpenSocial apps communicate with a third-party server for data storage or application logic. Integrating with your own third-party server allows you to add new dimension
Better than french toast! The OpenSocial Python Client Library enables you to work with OpenSocial data on your server, in the language of your choice - as long as it's Python :P
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http://code.google.com/intl/en/apis/opensocial/articles/appengine-0.8.html
opensocial-python-client - Google Code
opensocial-jquery - Google Code
Google AJAX Feed API
