  Today the B-factories BaBar and Belle have accumulated largest samples of
tau-tau events and are competing to be called tau-factories. Among the problems
to be tested and measurements to be done by BaBar and Belle are check of CP and
CPT invariance in tau decays, measurement of strange and non-strange spectral
functions, extraction of mass of strange quark and |V_us|, searches for lepton
flavor violation processes. In this paper, the latest results in tau physics by
these two experiments and measurements to be done within next few years are
reviewed.
