What does OpenSocial offer in the way of being able to transfer your social network profile and contacts across networks? It’s the question that has been on many lips, from Tim O’Reilly to Tantek Celik, but a hint that this may in fact be possible recently appeared in the OpenSocial documentation for hosting applications with this statement:
Usually your SPI will connect to your own social network, so that an OpenSocial app added to your website automatically uses your site’s data. However, it is possible to use data from another social network as well, should you prefer.
Of course, this will require social networks to enable such functionality, but if done, it could be a step in the right direction.