  New calculations are presented for Gamow-Teller beta decay of nuclei near
$^{100}$Sn. Essentially all of the $^{100}$Sn Gamow-Teller decay strength is
predicted to go to a single state at an excitation energy of 1.8 MeV in
$^{100}$In. The first calculations are presented for the decays of neighboring
odd-even and odd-odd nuclei which show, in contrast to $^{100}$Sn, surprisingly
complex and broad Gamow-Teller strength distributions. The results are compared
to existing experimental data and the resulting hindrance factors are
discussed.
