  We summarize recent results obtained thanks to the phenomenology of Dihadron
Fragmentation Functions. The results include the update on the fitting
techniques for both the Dihadron Fragmentation Functions themselves and the
transversity PDF. The determination of the tensor charge of the nucleons as
well as the impact of the latter on search for physics beyond the standard
model are also discussed. So is the future extraction of the subleading-twist
PDF $e(x)$ from JLab soon-to-be-released Beam Spin Asymmetry data.
