Here we propose an A4 flavour symmetry model which implies a lower bound on the neutrinoless double beta decay rate, corresponding to an effective mass parameter Mee\gsim0.03 eV, and a direct correlation between the expected magnitude of CP violation in neutrino oscillations and the value of sin2θ13, as well as a nearly maximal CP phase δ.
@article{arxiv.hep-ph/0703046,
title = {Predictive flavour symmetries of the neutrino mass matrix},
author = {M. Hirsch and Anjan S. Joshipura and S. Kaneko and J. W. F. Valle},
journal= {arXiv preprint arXiv:hep-ph/0703046},
year = {2008}
}