I'm using Aperture for managing my pictures. I wanted to stream them to TV and PSMS didn't support this. In this Forum, I have read that there is currently no one working on aperture, so I have written the support for it by myself.
(Partly copied from the iPhoto support.) They use the same structure in the xml file. If you want, I can send you the patch, or check it into code.google.com (where I got the source code from).
Currently the support is "trivial": Only Albums are supported (included "intelligent" Albums), with the pictures of the last aperture run, and they will be in the correct Folder Tree, with preview image (if available). Works fine with XBMC (used for developing) and my Samsung TV. It will always list all available Aperture Libraries
In addition, I have created a new Samsung renderer, cause my TV is sending another User Agent (The TV model with SEC_HHP_TV will be send in the first request, nothing with wiselink anymore). I would like to add these too, cause maybe some samsung users will have the same problem.
You can contact me by mail or in this thread.