Daniele Ugoletti has done some work on this and has written an Application Skeleton that has to retrieve XML data at startup.
Please have a look at this thread:http://forums.puremvc.org/index.php?topic=21.0
Read the whole thread, (both pages) as toward the end, some refinements were made to handle multiple resources being loaded. The final download location was http://dev.ugoletti.com/puremvc/ApplicationSkeleton_v1.3.zip
Very soon, we'll have a public repository set up for this and other related projects.