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