  Combining our results for various O(alpha_s^2) corrections to the weak
radiative B-meson decay, we are able to present the first estimate of the
branching ratio at the next-to-next-to-leading order in QCD. We find BR(B ->
X_s gamma) = (3.15 +_ 0.23) x 10^-4 for E_gamma > 1.6 GeV in the B-meson rest
frame. The four types of uncertainties: non-perturbative (5%), parametric (3%),
higher-order (3%) and m_c-interpolation ambiguity (3%) have been added in
quadrature to obtain the total error.
