[MBCook]

Anything about Apple gets publicity, but now it's not as much of a surprise on Tuesday. They work really hard on that surprise so I don't see why they would leak it Friday.

Sometimes the leaks have a clear benefits to Apple, I don't think this is one of them.

[KGIII]

I'm going to speculate that anyone who was interested in Tuesday's revelations will still be observing on Tuesday. This is Apple, after all. They have a pretty dedicated following.