We present the application of the variational-wavelet analysis to the
quasiclassical calculations of the solutions of Wigner/von Neumann/Moyal and
related equations corresponding to the nonlinear (polynomial) dynamical
problems. (Naive) deformation quantization, the multiresolution representations
and the variational approach are the key points. We construct the solutions via
the multiscale expansions in the generalized coherent states or high-localized
nonlinear eigenmodes in the base of the compactly supported wavelets and the
wavelet packets. We demonstrate the appearance of (stable) localized patterns
(waveletons) and consider entanglement and decoherence as possible
applications.