I can imagine this url:
http://someserver.com/wiki/api.php?wikicode=code here
urlencoded&format=json&device=handheld
as a way to ask MediaWiki installed in
someserver.com to render has
html inside json the wikicode provided.
Do mediawiki already support something like this?
Is somewhat interesting, as make the engine "portable", so any device
can render wikicode in html, even clientside javascript (with a single
ajax call).