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.
Technology Voice 
I just blogged about this very topic the other day in great detail.
Read it here: http://tpgblog.com/2007/11/20/opensocial-impediment-or-catalyst/
The big thing to watch is where OpenSocial finally ends up. It is, clearly, still a work in progress — despite much of the press that makes it seem like it is 100% out in the wild with everything from widgets to containers being used.
Recently, I blogged about some of the much larger, Internet-wide, impact that could result from Google’s OpenSocial.
http://tpgblog.com/2007/11/20/opensocial-impediment-or-catalyst/
You can read more about it here…
And, Enjoy!
Jeremy Horn
The Product Guy
http://tpgblog.com
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