I'm happy now with the processing feedback branch. The goals noted on http://wiki.apache.org/xmlgraphics-fop/ProcessingFeedback are met IMO and most event are identified and broadcast through the new event subsystem. Of course, the coverage is not 100%, yet. I'm sure there are 1 or 2 places that could be improved. But I feel that it's time now to think about merging the branch with the trunk. We have to make experiences with the new subsystem and I'm sure there will be some adjustments.
So if anyone has anything that's not satisfying, yet, please let me know. Otherwise, I'll call for a vote to merge the https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/Temp_ProcessingFeedback branch in 2 or 3 days from now. There's some (probably imperfect) documentation now (in XML-Format in the branch) in additional to what's already on the Wiki. There are some open issues recorded on http://wiki.apache.org/xmlgraphics-fop/ProcessingFeedback/Status which I don't consider critical right now. Based on end-user feedback we can improve the whole thing later as necessary. At any rate, there's already more than the absolutely minimum necessary available. When the branch is integrated with trunk, I plan to call out to the user community to test the new feature. Thanks for all your feedback on this issue (past and future)! Jeremias Maerki