If I understood you correctly, you suggested just copying the content from a SVN interface web page into the wiki page, which works of course. The big drawback as I see it is that you have to remember to repeate the copy and paste when the file is modified...
No, I was talking about automatic retrieving the content of the webpage, so the wiki will always be up to date. I deemed that this is simpler than retrieving a file from svn itself. Bo