Noncommutative spheres and the AdS/CFT correspondence

We present a further argument in favor of non-commutativity of spheres in the AdS/CFT correspondence. Concentrating on the SCFT of $S_N$ orbifold, we use results for three point correlators (at finite $N$). Comparison with dual calculations on a non-commutative sphere is given with the characteristic feature of non-commutativity clearly identified.