WAY better window and screen stability, everywhere. Not having the DSP window splatter itself was cause enough for celebration.
I figure that with all of these small 'errors' not happening anymore, this will lead to increased app stability overall, which means longer playing time. And liberally fussing with the dials and knobs to boot etc.
10.6.8'rs rejoice. And maybe even a few other OS's will notice improvements as well.
JJ