the leopard beta used by jobs at his last conference is out now. but i would advise against using it. I can run various versions of poser on the same OS X machine, but there's no point, as all the ones prior to P7 are obsolete. AFAIK one of the features of sr1 was to re-introduce network checking, which would obviate trying to run multiple copies of the same version of Poser in OS X.