Update user profile using client object model SharePoint 2010

So i have read through all the blogs where they say we cannot update the user profile properties using javascript client object model well that is true and there is a great post where you can see how to atleast retrive them here -> http://www.learningsharepoint.com/2010/07/19/programmatically-get-user-profile-picture-using-client-object-model-sharepoint-2010/
but still there should be some way to update it right? Here are the options i could find

Using Silverlight  -  http://social.technet.microsoft.com/Forums/da/sharepoint2010programming/thread/ac38381a-0c85-45ab-846d-89e8fbcffb3f

a good example -> http://msdn.microsoft.com/en-us/gg981390
Another would be using SOAP request with javascript client object model - sorry i am looking for the link i will update it soon.

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