We have a new <interwiki>-tag here. I just made an extension to automatically create interwiki links to a word of your choice in wiki pages.
The extension will read from the interwiki mysql table and create links.
Example:
<interwiki>WikiNode</interwiki> produces:
<interwiki>WikiNode</interwiki>
mutante 20:31, 24 Apr 2005 (CEST)