  The search for an excess of antideuterons in the cosmic rays flux has been
proposed as a very promising channel for dark matter indirect detection,
especially for WIMPs with a low or intermediate mass. With the development of
the AMS experiment and the proposal of a future dedicated experiment, i.e. the
General Antiparticle Spectrometer (GAPS), there are exciting possibilities for
a dark matter detection in the near future. We give an overview on the
principal issues related both to the antideuterons production in dark matter
annihilation reactions and to their propagation through the interstellar medium
and the heliosphere, with a particular focus on the impact of various solar
modulation models on the flux at Earth. Lastly, we provide an updated
calculation of the reaching capabilities for current and future experiments
compatible with the constraints on the dark matter annihilation cross section
imposed by the antiproton measurements of PAMELA.
