Full story at ESPN.com
The NBA's statement (which I find somewhat amusing)
I still fear that the division between the player's union and the league is growing wider and wider. I've said it before and I'll say it again: if either side believes a lockout will garner any support from the fans or improve the league's image and standing, they are sorely mistaken. I believe another lockout, only five years removed from the last one, will hurt the league's popularity with its fans much more than the Pacers/Pistons brawl (though that's not to say the brawl was a fantastic event in the history of the league).
As far as the ruling goes, I agree with it. If the yardstick is Stephen Jackson's involvement in the incident and Vernon Maxwell's incident back in 1995 (which is what I personally feel it should be), 15 games seems quite fair for O'Neal's actions, which did warrant punishment but not the 25 games that were originally handed down.