It has been recently suggested that gravitons moving in AdS(m)xS(n) spaceti
mes along the S-n blow up into spherical (n - 2)-branes whose radius increa
ses with increasing angular momentum. This leads to an upper bound on the a
ngular momentum, thus ''explaining'' the stringy exclusion principle. We sh
ow that this bound is present only for states which saturate a BPS-like con
dition involving the energy E and angular momentum J,E greater than or equa
l toJ/R, where R is the radius of S-n. Restriction of motion to such states
lead to a noncommutativity of the coordinates on S-n. As an example of mot
ions which do not obey the exclusion principle bound, we show that there ar
e finite action instanton configurations interpolating between two possible
BPS states. We suggest that this is consistent with the proposal that ther
e is an effective description in terms of supergravity defined on noncommut
ative spaces and noncommutativity arises here because of imposing supersymm
etry.