Node Map Solutions

What are good free alternatives to Google Maps which we are currently  using for our node map but would like to change it to something else. But does anything else have also aerial photos which really help when trying to position node precisely? What are experiences with  OpenStreetMap?

So, maybe we could first made a list of all our node map solutions:

•  wlan slovenija has a very simple one with real-time status and filtering options
•  Freifunk Node Database has a map based on  OpenStreetMap and  OpenLayers:
  • Main layer is generated from static data from the database with  map_layers plugin for Rails.
  • Additional live layer currently beeing created by external script ( cgi-bin-map.kml). It processes olsrd's /var/run/latlon.js ( mapwrite.c). Rewrite of live layer in ruby with filtering and caching on todo list.
• Netmon has a  map based on  OpenLayers that uses  OpenStreeMap,  Google Maps and  Bing Maps.
  • Main layers are provided by Netmons API as kml file wich are generated by Netmon from the database:
    •  http://netmon.freifunk-ol.de/api.php?class=apiMap&section=getOfflineServiceKML
    •  http://netmon.freifunk-ol.de/api.php?class=apiMap&section=getOnlineServiceKML
    •  http://netmon.freifunk-ol.de/api.php?class=apiMap&section=conn
• centralized Freifunk Map:  Live System,  Source Code
• Decentralized Freifunk Map:  Live System,  Source Code, in some subfolders there
• FFHTopo  Live Installation,  Some Infos in German. SVN currently down
• Freimap  Information
• Map from Ninux:  http://map.ninux.org/
• Heartbeat Map, Freifunk Pberg  Live System
• Funkfeuer Wien  Live System
• Funkfeuer Graz  Live System
• Guifi.net Map  Live System