Most importantly to me, (since for all my bitching, I spend a lot of my work time writing Mac software) Xcode went from 'spectacularly awful bag of suck' to just 'kinda sucks', and ARC, blocks, Objc-2, non-insane literal syntax are all forces for Good.
And yes, I love inverse ('natural') scrolling and it is enabled on all my Macs. :)
It's not that Apple does nothing at all good, it's that their focus has become even more relentlessly "systems that the average shopper at walmart can use" at the expense of those users who have a stronger grasp of general computing concepts.
When they disable all the extra screens in fullscreen mode, the chances of my dad getting confused and looking at the wrong monitor are reduced. But at the same time, the amount of data I can see at once, and my ability to manipulate it, are also reduced.