  We discuss duality orbits and symplectic deformations of D=4 gauged
supergravity theories, with focus on N$\ge$2. We provide a general constructive
framework for computing symplectic deformations starting from a reference
gauging, and apply it to many interesting examples. We prove that no continuous
deformations are allowed for Fayet-Iliopoulos gaugings of the N=2 STU model and
in particular that any $\omega$ deformation is classically trivial. We further
show that although in the N=6 truncation of SO(8) maximal supergravity the
$\omega$ parameter can be dualized away, in the 'twin' N=2 truncation $\omega$
is preserved and a second, new deformation appears. We further provide a full
classification and appropriate duality orbits of certain N=4 gauged
supergravities, including all inequivalent SO(4)$^2$ gaugings and several
non-compact forms.
