Measurements of Inclusive $B \rightarrow X_u \ell \nu$ Decays
  Recent results on inclusive charmless semileptonic decays of B mesons are reviewed. Emphasis is given to measurements on the recoil of fully reconstructed B mesons, which allow to exploit several regions of phase space. Preliminary averages of the CKM matrix element $|V_{ub}|$ from the Heavy Flavour Working Group are shown, using four different theoretical calculations. 
Concezio Bozzi (on behalf of the Babar and Belle Collaborations)
hep-ex