Abstract　 　 
After more than two years of operations of the Solar Dynamics Observatory (SDO), it is possible to have a good picture of the discoveries made by its three instruments (separately or jointly) and their combination with other space (e.g. Hinode, Secchi/STEREO, SoHO, ..) and ground-based instrumentation. We will put some emphasis on results pertaining to Space Weather and we will also discuss some pending issues that should be addressed by future instrumentation.