  Radio observations with the Square Kilometer Array (SKA) provide the agility,
sensitivity, and spectral coverage to trace the evolution of the size, shape
and spectra of gamma-ray burst (GRB) remnants from the earliest moments on. In
the first hours to days after the burst a major, and unique tool, will be
provided through the study of dynamically evolving radio spectra, caused by
diffractive and refractive scintillation in the local ISM. Simultaneous
observations from optically thin to optically thick frequencies will provide
strong constraints on any model for the GRB remnant. SKA will also allow for
extremely rapid (within minutes, if not seconds) follow-up observations by
electronic steering of the array. SKA observations have the sensitivity to
detect GRB afterglows out to redshifts of 10 or greater. They therefore allow
studies of the high redshift universe, and measure the massive star formation
(and massive star death rate!) history of the universe, unbiased by optical
obscuration. Wide field surveys may detect thousands of GRBs within a few days
of observing (depending on the amount of collimation, the width of the GRB
luminosity function, the number of GRBs like GRB 980425/SN 1998bw). There would
be new ones, but many more would be old, fading afterglows, allowing the
determination of the multi-variate GRB-optical-radio luminosity function of
GRBs. This should elucidate the relation of the `faint' ones, like GRB 980425,
to the luminous ones like GRB 970508. Such surveys will also tell us whether
GRB fireballs (and which ones) are collimated into jets.
