3D models in OSM

Dear all,
we have already very impressive examples of 3D models in OSM.

Best example in my eyes is recently Moscow:

http://map.f4-group.com/#lat=55.7518916&lon=37.6200337&zoom=18&ui.discoveryOpen=false&camera.theta=71.929&camera.phi=77.922

Also in Bremen, Lübeck, Warszawa, Kraków, Torun and other cities.

We use for the modelling this tagging:

http://wiki.openstreetmap.org/wiki/Simple_3D_Buildings

Best regards,

Marek