I read that at the time, Joyce did not think that Galaragga (or whatever the kid's name is) had control of the ball. And in the pros, ties to the batter-runner.
So let's just call that play an E-1 and give Gallaragga a No-Hitter.
Then again, I didn't think that Halladay's 1st Baseman had his foot on the bag for #27 when I saw that live on ESPN.
I just say, put the entire half of the 9th in question under Review when you have a potential Perfect Game or No Hitter. History needs to be defended from Judicial Error!