The Last Neutrino Mixing angle theta13
  Among the still unmeasured neutrino properties, the third neutrino mixing angle, theta13, is likely to be the one we will next find out. In this contribution, first a brief summary of the limits and the preliminary measurements of this angle is given. Second a critical assessment of a widely used formula connecting two- and three-flavor evolution is provided. 
A.B. Balantekin, (Wisconsin U., Madison)
hep-ph nucl-th