  Partial Split Supersymmetry with bilinear R-parity violation allows to
reproduce all neutrino mass and mixing parameters. The viable dark matter
candidate in this model is the gravitino. We study the hypothesis that both
possibilities are true: Partial Split Supersymmetry explains neutrino physics
and that dark matter is actually composed of gravitinos. Since the gravitino
has a small but non-zero decay probability, its decay products could be
observed in astrophysical experiments. Combining bounds from astrophysical
photon spectra with the bounds coming from the mass matrix in the neutrino
sector we derive a stringent upper limit for the allowed gravitino mass. This
mass limit is in good agreement with the results of direct dark matter
searches.
