Good riddance to skeuomorphic design. What an eyesore. There's a reason that people were rushing to return iCal to it's normal glory after it succumbed to skeuomorphism. Let's hope that Forstall's departure let's Ive be a little more involved (in other words, less skeuomorphism).
From what I've read, Forstall's departure was a long time coming. It seems like Jobs liked him which may have been the only thing saving his role in the company.
I find it interesting that Forstall ripped into the iOS team for not being innovative enough (
source). While in some respects I agree with him, he was responsible for that stagnation so I'm not sure his aggression was warranted.
To be fair to him, he did bring Unix support to OS X, Aqua and was responsible for Leopard (a fine release).