The latest update of rackspacecloudfiles.mod, version 1.06, comes with metadata support for objects. You can now retrieve metadata and set it. Setting metadata can be done when uploading a file or you can change it on existing objects.

htbaapub.mod got updated to version 1.03 today. This version contains an updated fsm.mod, rest.mod and rackspacecloudfiles.mod. If you use any of these modules I recommend updating. Download htbaapub.mod 1.03 (contains source code of all modules)