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We review recent developments in models of neutrino masses and mixing.Emphases are given to models based on finite group family symmetries from whichthe tri-bimaximal neutrino mixing can arise. In particular, we describe onerecent model based on SUSY SU(5) combined with a family symmetry based on thedouble tetrahedral group, T'. All 22 observable fermion masses and mixingangles and CP violating measures are fitted with only 9 parameters. In thismodel, a near tri-bimaximal MNS matrix and a realistic CKM matrix aresimultaneously generated; the MNS matrix gets slightly modified by virtue ofhaving the Georgi-Jarlskog relations. Due to the presence of complexClebsch-Gordan coefficients in T', CP violation in this model is entirelygeometrical in origin. The prediction of the model for the leptonic Dirac CPphase is 227 degrees, which turns out to be very close to the current best fitvalue of 220 degrees from SuperK.

Models and Phenomenology of Neutrino Masses circa 2010