The idea was to merge Wikiminiatlas and OSM-Gadget to a commons tool that is powered by Leaflet or OpenLayers3.
Now it seems both developers (me and DSchwen) have other things to do. So some support for an update would be nice.
Tiles in WikiminiAtlas have a different projection.
I think that WikiMiniAtlas also uses some vector rendering at some zoom levels, so might not be the right thing for using production tiles. afaik, it does need the mapnik database.
I think the OSM gadget by Kolossos uses more standard tiles, afaik.