So it's not useful for the scenario I'm referring to - in a MS ID application.

 Same question as Gabe - as far as I understand the IFPC library is valid in an iFrame only in the context of a canvas page. How can I use it with MyspaceID? 

 Hi,  We're trying to use the REST API for updating a user status. Our application is a DA application. I'm getting this error in return: <error xmlns="api-v1.myspace.com"><statuscode>401</statuscode><statusdescription>User has not installed the current application or application does not have ...

 Hi,  We're trying to set a user status through the REST API for a DA application.  I'm getting this error: <error xmlns="api-v1.myspace.com"><statuscode>401</statuscode><statusdescription>User has not installed the current application or application does not have access to requested ...

 OK, so it looks like by default the request doesn't return any fields, you have to specifically request them in the "fields" parameter. But - we're always getting 401 (Unauthorized) error when adding the fields parameter! Please check this out.

 We're seeing another, but maybe connected problem - when getting the current user (http://api.myspace.com/v2/people/@me/@self?format=json), now only the id is returned, whereas before we got other fields like display name, thumbnail etc. MDP, any idea?

 Thank you, looks like this workaround is working.

 This is still hapenning. I think it has to do with what we've seen before, where only developers of the application can use it. What we've noticed is that for a user that is a developer of the application, the auth process succeeds. For a user who is not a developer, we get the 404 error. Please check it.

 We've also experienced problems with the approval of an external app (a thread on this in the DA forum - http://developer.myspace.com/Community/forums/t/3870.aspx). Would appreciate a quick fix for this issue.

 I'm sorry but it's not. Unchecking the "Installable" checkbox, saving the app - Installable is checked again. Please fix it, it's really holding us back from going forward with the DA thing.