10 minutes ago I released the open collaboration services API specification in version 1.3

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  Some api call like person search for example can be access without authentification now.
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  We limit the number of API call from specific IP address to prevent DOS attacks.
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  You can do 50 API call from one IP address every 15min. Or 200 API calls from one IP every 15min if you are a authenticated user. I hope this is enough for everybody.
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  Now users can use the &#8220;show users nearby&#8221; plasmoid without registering.
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  This is a feature request from the Kubuntu guys.
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  All data can optionaly be fetched in JSON if you dont like XML. Just add the format=json parameter. The default and recommended format ist still XML
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  I hope you like the features.
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  By the way. We already have great submissions for the Social Desktop Contest. And I´m sure we will have great social features in KDE 4.4
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  Cheers
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  Frank
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