  Using the EGRET data and an improved point source analysis, including an
energy dependent point spread function and an unbinned maximum likelihood
technique, we have been able to place considerably lower limits on the gamma
ray flux from the galactic center region. We also test this method on known
sources, the Crab and Vela pulsars. In both cases, we find that our method
improves the angular precision of EGRET data over the 3EG catalog.
  This new limit on gamma rays from the galactic center can be used to test
models of annihilating supersymmetric dark matter and galactic halo profiles.
We find that the present EGRET data can limit many supersymmetric models if the
density of the galactic dark matter halo is cuspy or spiked toward the galactic
center. We also discuss the ability of GLAST to test these models.
