  The advantages of Flipped SU(5) over conventional Supersymmetric GUTs, like
SU(5), are discussed. Recent values of the strong coupling at M_Z, sin-squared
theta-Weinberg, g-2 of the muon, and the lower limit on the proton lifetime for
the (K+, anti-neutrino) mode point directly to Flipped SU(5) as the simplest
way to avoid potential pitfalls. It is shown that "F(lipped)-enomenology"
accomodates easily all presently available low-energy data, favoring a rather
"light" supersymmetric spectrum while yielding the right amount of Cold Dark
Matter and a proton lifetime in the ((e+/muon+), pi-zero) mode which is beyond
the present experimental limit yet still possibly accessible to a further round
of experiments.
