We calculate the anisotropies in the cosmic microwave background induced by
long-wavelength primordial gravitational waves in a universe with negative
spatial curvature, such as are produced in the ``open inflation'' scenario. The
impact of these results on the COBE normalization of open models is discussed.Comment: 5pgs, 2 figs.; also avalable at http://www.sns.ias.edu/~whu, revision
reflects ApJL published version, model dependence clarifie