As a free project, Google could make a point of providing a special API which would allow wikitext markup translation. Currently there are a number of issues with the translation of raw wikitext. (Translated in article edit mode): http://translate.google.com/translate?hl=en&sl=auto&tl=es&u=http://en.wikipedia.org/w/index.php%3Ftitle%3DGoogle_Translate%26action%3Dedit Internal links appear to be fine, but template tags ({{tag}}), external links [http://...], and interwiki links [[ar:جوجل]] typically get borked in various ways. http gets capitalized to Http for some reason. Template tags are converted to parentheses, and their contents transposed. RTL issues play a role in the interwiki links, and keeping existing carriage returns in place could mitigate this. Article headers (== Example ==) likewise get messed up. This is of course, not to mention the useless <span onmouseover=> tags, and their transposed content. Dealing with most of these rules appears to be rather simple, and containing these rules in a particular API is likewise. Offering checkbox switched usage of this tool would be quite useful for WikiMedians.
