  Using BaBar measurements of the inclusive electron spectrum in B->X_u e nu
decays and the inclusive photon spectrum in B->X_s gamma decays, we extract the
magnitude of the CKM matrix element Vub. The extraction is based on theoretical
calculations designed to reduce the theoretical uncertainties by exploiting the
assumption that the leading shape functions are the same for all b->q
transitions (q is a light quark). The results agree well with the previous
analysis, have indeed smaller theoretical errors, but are presently limited by
the knowledge of the photon spectrum and the experimental errors on the lepton
spectrum.
