The mobile IAP Fe lidar is a transportable resonance lidar probing the meteoric Fe layer, temperatures, and aerosols in the mesopause region. It was in operation at Davis, Antarctica (69°S, 78°E) from December 2010 to December 2012 and has been obtaining measurements at ALOMAR, Norway (69°N, 16°E) since July 2014. Here we present recent and important results of the campaigns about the metal layer dynamics and chemistry, temperatures, and the comparison to other instruments and models. The inter-hemispheric comparison shows expected similarities but also clear differences in metal layer densities as well as the mesopause temperature structure and the diurnal behaviour. A comparison to co-located OH(6-2) observations allows to draw some conclusions about the temperature derivation.