There is a major lack of coherent communication in regards to merged mining. I'm willing to implement it if there were some central location that information were able to be found... but so far you have to comb through various posts and forums that are disjointed and inaccurate.
But as of right now, it seems that the only information that I have found is that it's unstable, untested and almost unusable without a lot of trial and error.
Could you please tell me which information about merged mining you are missing? I really did my best to gather all information on dot-bit Wiki (
http://dot-bit.org/Merged_Mining). IMHO merged mining is not an arcane art. Just patch bitcoind, install latest namecoind and connect them with merged mine proxy. Point an existing pushpoold to merged mine proxy and you are done. For a pool you have to adapt your frontend and backend scripts of course, but this has to be done by each pool operator. Perhaps I became blinkered in my work. Thus please let me know which information is needed, I'll do my best to add it to the Wiki. Furthermore I'm going to review it in order to reflect the latest status of the project.