  We investigate the possibility of replacing the cosmological constant with
gradual condensation of a scalar field produced during the decay of a
superheavy dark matter. The advantage of this class of models to the ordinary
quintessence is that the evolution of the dark energy and the dark energy are
correlated and cosmological coincidence problem is solved. This model does not
need a special form for the quitessence potential and even a simple ${\phi}^4$
theory or an axion like scalar is enough to explain the existence of the Dark
Energy. We show that the model has an intrinsic feedback between energy density
of the dark matter and the scalar field such that for a large volume of the
parameter space the equation of state of the scalar field from very early in
the history of the Universe is very close to a cosmological constant. Other
aspects of this model are consistent with recent CMB and LSS observations.
