The present and some future aspects of the experimental approach and the nuclear structure interpretation in the neigbourhood of 1000Sn are reviewed. Extensive spectroscopic studies have been made on high spin states in the light neutron deficient nuclei in the vicinity of 100Sn. Proton-rich nuclei in this region have been investigated using the OSIRIS, NORDBALL, high efficiency Euroball cluster detectors in a pre-Euroball experiments, as well as GASP and Euroball detector arrays. Mainly a 58Ni beams at energies of 270 MeV on 54Fe and 261 MeV on 50Cr targets were used Reaction channel separation was achieved with a 4π charged particle multi-detector set-up together with a neutron detector wall placed in the forward direction. In result a level schemes of some light I, Te, Sb, Sn, In, Cd, Ag and Pd nuclei were observed for the first time.