Blender 2.61 is now available. Feature list (http://www.blender.org/development/release-logs/blender-261/). Download (http://www.blender.org/download/get-blender/). Map export, MD5 (http://www.katsbits.com/smforum/index.php?topic=167.0) and MD3 (http://www.katsbits.com/smforum/index.php?topic=275.0) scripts (http://katsbits.com/tools/) all appear to be working OK in this release (obviously each requires a different set-up and export prep). Any issues or questions ask in the forum (http://forums.katsbits.com/).