I agree with bdarcus that some minor changes can always be made by users themselves on the basis of some general form of citations. Having too many formats packed in zotero for all users would make it very unwieldy. the plugin way to do it would be good.
Ultimately we intend to offer a utility which makes the process of developing new styles much more user friendly, but for the time being it is a bit more technical than our average user can muster
"We really need an easy-to-use web-based previewer and tester, though."Wouldn't a Firefox extension be the nicest way to implement such a tool?
A web-based tool would not only cater to these other users, but could hopefully build a publicly accessible database of styles. I see no reason a web-based tool couldn't make styles which could be tested with Zotero as easily as ones generated through a (non-zotero) firefox plugin.
Just to add my 2 cents to the wishlist, I'm an anthropologist and would therefore be interested in seeing the style used by the journals of the American Anthropological Association. (I may be able to do it myself if I can find the time to figure out how to create Zotero bibliography styles.) Basically, it looks something like this:
Smith, Deborah 1999 A Journal Article. American Anthropologist 100(2):305-332. 2002 A Chapter in a Book. In An Edited Volume. William Jones and Maureen Davis, eds. Pp. 129-152. Berkeley: University of California Press. 2005 A Conference Paper. Presented at the annual meeting of the American Anthropological Association, Washington D.C., November 23. 2006 A Recent Book. New York: Random House.Smith, John, ed. 1997 Another Edited Volume. Durham, NC: Duke University Press.