  We examine a recent deformation of three-dimensional anti-deSitter gravity
based on noncommutative Chern-Simons theory with gauge group $U(1,1)\times
U(1,1)$. In addition to a noncommutative analogue of 3D gravity, the theory
contains two addition gauge fields which decouple in the commutative limit. It
is well known that the level is quantized in noncommutative Chern-Simons
theory. Here it implies that the cosmological constant goes like minus one over
an integer-squared. We construct the noncommutative $AdS^3$ vacuum by applying
a Seiberg-Witten map from the commutative case. The procedure is repeated for
the case of a conical space resulting from a massive spinning particle.
