I all, I'm new into the talk, I'm a it.sorce user.
About the interesting Aubrey's onion model, I just discovered basic AJAX
tricks, they are great do change the contents of a page using data stored
into different pages and/or javascript variables (as wgUserName) and/or
preferences or gadgets.
So, I'll think a little about a "AJAX onion", that would allow to save
"leaves of onion" in different pages, but consider that any dinamic change
of rendered HTML is visible only to user and there's no, or few, trace of
them into wiki code.
Just now, servers seem down, so I cant test what happens saving a HTML page
whose code has been manipulated via AJAX, I presume, any change will be
saved, but I've to test to be sure.
Alex