Do WMAP data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy ?

We allow simultaneously for a CDM–DE coupling and non–zero neutrino masses and find that significant coupling and neutrino mass are (slightly) statistically favoured in respect to a cosmology with no coupling and negligible neutrino mass (our best fits are: C∼1/2mp, mν∼0.12eV each flavor). We assume DE to be a self–interacting scalar field and use a standard Monte Carlo Markov Chain approach.