Status of the scientific observations with MIDI on the VLTI

After two years of official operation as a facility instrument on the Very Large Telescope Interferometer (VLTI) the MID-infrared Interferometric instrument (MIDI) has provided a great wealth of new results. The number of AGNs observed and the diversity of targets requested for observations are beyond expectations and illustrate the success of the instrument concept. We will outline the scientific issues recently addressed by MIDI and present briefly the potential ones