  Collective excitations of rotating dusty plasma are analyzed under the quasi
localized charge approximation (QLCA) framework for strongly coupled systems by
explicitly accounting for the dust rotation in the analysis. Considering the
firm analogy of magnetoplasmons with "rotoplasmons" established by the recent
rotating dusty plasma experiments, the relaxation introduced by the rotation in
their strong coupling and 2-dimensional (often introduced by gravitational
sedimentation) characteristics is emphasized in their dispersion. Finite
rotation version of both strong and weak coupling dispersions is derived and
analyzed, showing correspondence between a `faster rotating but weakly coupled'
branch and its strongly coupled counterpart, relevant to both magnetized and
unmagnetized dust experiments, in gravity or microgravity conditions. The first
correspondence between their measurements in rotating plasmas and the QLCA
produced dispersions in a rotating frame, with an independent numerical
validation, is presented in detail.
