We identify the newly found Z(4433) with the first radial excitation of the tetraquark basic supermultiplet to which X(3872) and X(3876) belong. Experimental predictions following from this hypothesis are spelled out.
@article{arxiv.0708.3997,
title = {The Charged Z(4433): Towards a New Spectroscopy},
author = {L. Maiani and A. D. Polosa and V. Riquer},
journal= {arXiv preprint arXiv:0708.3997},
year = {2007}
}