  We discuss the constraints on the inhomogeneous reheating scenario. In
particular, we discuss the prospects for low scale inflation with a Hubble
constant of the order of the gravitino mass, and the possibility that an MSSM
flat direction is responsible for the density fluctuations. Thermal effects are
generically fatal for the scenario, and can only be avoided for small enough
mass and couplings of the flat direction field, excluding MSSM flat directions.
Prompt decay at the end of inflation bypasses thermal constraints, and is
compatible with both low scale inflation and MSSM flat directions. However, the
level of non-Gaussianity is acceptably small only for a small window of
inflaton mass and couplings. The upshot is that tuning of parameters is needed
for the inhomogeneous reheating scenario to work.
