This bug tries to start tighter OSM-WM integration. The main goal is probably to support development of OSM map viewing MediaWiki extensions and finally allow usage of such extension within various Wikimedia projects. Ref http://meta.wikimedia.org/wiki/OpenStreetMap
Is this still the relevant bug? Wasn't there something in the works for direct inclusion of OSM maps in articles (maybe by WM-DE)?
See https://www.mediawiki.org/wiki/Maps
I'm closing this because its not very actionable - we are working on this full steam :)
Let's call it a duplicate of T120809 then, which is a large part of what was asked here I think.