We have a number of sources of aerial imagery available in Switzerland that are accessible by so called WMS servers. JOSM supports such servers directly, but P2 (the editor imbedded ob the OSM map page) users and users of a number of mobile apps cannot access such data.

Additionaly in some cases the imagery is not available in the “Spherical Mercator”  projection that most OSM tools use as default.

We now have, on a test and experimental base, a MapProxy instance running that supports reading imagery from WMS servers and serving this as Google/OSM format tiles, reprojected if necessary.

Up to now we have added 2 layers:

• City of Uster 2008 10cm resolution aerial imagery
• the city map of Zürich, released yesterday during the opendata.ch 2012 event

We will consider further layers, we would however point out that in the current environment the capacity of the server is limited.