  The 17m Imaging Air shower Cherenkov Telescope MAGIC (Roque de los Muchachos
Observatory, La Palma, Canary Islands) has recently entered its commissioning
phase. One of the main goals of the MAGIC telescope project is to provide an
unprecedented sensitivity for the detection of gamma rays with energies as low
as 30 GeV. A dedicated search for the gamma rays expected to be produced by
WIMP annihilations is a prime object of the MAGIC physics program. We consider
annihilating supersymmetric dark matter in M 87 and discuss a possible
observation strategy. New calculations concerning the extragalactic gamma ray
and neutrino backgrounds owing to cosmological neutralino annihilation are also
briefly discussed.
