  Extending earlier work(*), we examine the deformation of the canonical
symplectic structure in a cotangent bundle $T^\star(\Q)$ by additional terms
implying the Poisson non-commutativity of both configuration and momentum
variables. In this short note, we claim this can be done consistently when $\Q$
is a Lie group. -- (*) F.J.Vanhecke, C.Sigaud and A.R.da Silva,
arXiv:math-phys/0502003(2005) and Braz.J.Phys.{\bf 36},no IB,194(2006)
