  Inverse Compton scattering appears to play a more important role in the
diffuse Galactic continuum emission than previously thought, from MeV to GeV
energies. We compare models having a large inverse Compton component with EGRET
data, and find good agreement in the longitude and latitude distributions at
low and high energies. We test an alternative explanation for the >1 GeV
gamma-ray excess, the hard nucleon spectrum, using secondary antiprotons and
positrons.
