  We compute the CMB anisotropy in an open inflation CDM model which is
normalized to the two-year DMR sky map. Presently available CMB data is
consistent with $\Omega_0 \sim 0.3 - 0.4$, but does not strongly disfavour
either $\Omega_0 \sim 0.1$ or $\Omega_0 \sim 1$. Accumulating CMB data should
strengthen the observational discriminative power, however, a better
understanding of systematic effects will be needed before it will be possible
to draw robust conclusions about model viability.
