IceCube and KM3NeT: Lessons and relations

This talk presents lessons for KM3NeT, which may be drawn from the latest IceCube results and from optimization studies of the IceCube configuration. It discusses possible coordinated efforts between IceCube and KM3NeT (or, for the time being, IceCube and ANTARES). Finally, it lists ideas for formal relations between neutrino telescopes on the cubic kilometer scale.