Mmh, just an idea: what do you guys think, wouldn't it be a great idea to create a comparison between the most active MAME builds, list the features and the cons, their sources and/or diffs and their websites. It would be a great "(NeoSource Exclusive)" and IMHO a much better sticky than the source collection atm.
Me for example, I was really confused some years ago as I started with MAME because of all these builds.
I have to admit, I still don't know some features of some forks (the Neht or the Thunder one for example! O.o) and I would really enjoy it to see such a comparison.