Hi Maxx,
A couple years ago, we started working on creating Joomla extensions at Alledia. We ended up forking Xmap because development had stalled on it. We changed the name, fixed bugs, and developed some new features for it. It's now OSMap and it's what we recommend :)
www.alledia.com/extensions/osmap/
Hope this helps! Let us know if you have any questions and we'll be glad to answer.
Kind regards,
Nick