  Following our previous work in noncommutative braneworld inflation
(arXiv:0911.4418), in this paper we use the smeared, coherent state picture of
noncommutativity to study evolution of perturbations in a noncommutative
braneworld scenario. We show that in this setup, the early stage of the
universe evolution has a phantom evolution with imaginary effective sound
speed. We show also that the amplitude of perturbations in the commutative
regime decays faster than the noncommutative regime with the same parameter
values, and as a result we need smaller number of e-folds in the noncommutative
regime to have a successful braneworld inflation.
