Apple killed skeuomorphism in iOS.
Jobs was a big fan of creating illustrations that look like real life objects. He loved the fake Vegas gaming table in iOS's Game Center. Apple just killed all of that. It's going with a flatter look that removes all the life-imitating graphics and animations.
Apple is phasing out rounded rectangles.
This is sort of a silly one, but Jobs loved rounded rectangles. There's a story in his biography about someone questioning his decision for rounded rectangles in the early Apple days. He dragged the guy for on a walk around the block to show how many rounded rectangles there are in the everyday world. Apple's new iPhone software has more circles in it than ever. He wouldn't like that.
Jobs said he was anti-small tablets, but Apple made the iPad Mini.
Jobs went on a big rant about how tablets that are smaller than 10-inches were going to be dead on arrival because they provide a terrible app experience. He said companies selling tablets ought to include sandpaper because users will need to sand down their fingers to use the tablets. Apple has since released the iPad Mini, and people seem to love it. Oops.
Apple did a huge dividend and stock buyback.
Apple's cash pile grew massive while Jobs was alive. Despite the clamoring for a dividend from investors, Jobs never caved and returned money to shareholders. After he died, Tim Cook decided to give investors a huge buyback and dividend.
Apple's Maps were a complete disaster.
Jobs famously trashed the MobileMe team after it delivered a terrible product. What would he have done when Apple released Apple Maps? He would have been furious. But, interestingly, he may have approved of how Cook handled Maps. He fired the manager of Maps, and cut Scott Forstall, who was ultimately responsible for Maps.
Apple has matching charitable contributions for employees.
Jobs was not known for his charity. Mostly because he never did any. At least not publicly. As soon as he was gone, Cook decided to make Apple a more charitable company. It does matching contributions with its employees.
Siri is a joke.
Siri is a bad product. Jobs would be furious. It doesn't work well, and it's just extra junk. Just like he'd chew someone out over Maps, he'd chew someone out over Siri.
Apple's advertising has gone south.
Jobs had an amazing ear for advertising. He made a lot of classic, fantastic ads for Apple. Since his death, Apple's marketing has been off. It's tried a bunch of different ad styles, but not of them have really stuck because they're not all that great.
Additionally, the public's perception of Apple is not as good as it once was.
Normal people still love Apple. But, it's no longer seen as the best brand in the world. Part of this is that Tim Cook just isn't as talented at controlling the message about Apple. That's not really a knock on Cook. Nobody is as talented at understanding the media and controlling the message as Jobs.
