Philip,
     
    This sounds easy enough.  I can't make any guarantees, but we can investigate.  Just to be clear on the implementation, a data service request URL looks something like this:
     
    http://{host}/{database}/api/data/collections
     
    For this particular request, we return a list of views and folder like:
     
    [ {...}, {...} ]
     
    You are asking us to add a JSONP callback parameter like this:
     
    http://{host}/{database}/api/data/collections?jsonp=handleResponse
     
    And we would return this instead:
     
    handleResponse( [ {...}, {...} ] );
     
    And of course, you want us to support the jsonp parameter for all data service requests.  Is that what you are looking for?
     
    -- Dave Delay