  We discuss the model consisting of tachyon which may have the negative
kinetic energy plus scalar phantom and plus conformal quantum matter. It is
demonstrated that such a model naturally admits two deSitter phases where the
early universe inflation is produced by quantum effects and the late time
accelerating universe is caused by phantom/tachyon. The energy conditions
bounds for such cosmology are derived. It is interesting that effective
equation of state may change its sign which depends from the proper choice of
the combination of phantom/tachyon and quantum effects.
