Of course it is! No full web experience is complete without big, flashy ads!
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I think it's more because of the fact that Apple did not support Flash on their mobile devices. They can really change the game. Adobe was originally going to try and keep going with Flash, but they didn't want to lose customers from Apple's massive pressure.
It's like short-selling a massive number of shares of some stock and watching the price plummet, making it look like you predicted it. Steve did not predict anything, but he did make a wise choice and decided that Flash has got to be fixed or killed.
The last thing Apple seems to want to do is support a bad standard, and if they had let Flash grow unchecked, it would be unstoppable. The turn to video streaming is a window of opportunity for a change like this, and now it's very embarrassing for Android phones that were bragging about Flash. Also, why support Flash on iOS if all it does is load ads and watch a few videos that have HTML5 or Quicktime versions anyway?
I applaud Steve's bravery in fighting bad standards like Flash, Blu Ray, HDMI, and USB, but it seems that Apple has given in to USB 3.0 and HDMI post-Steve. I'm not making any assumptions about what he would have done here, but I'm sad that HDMI is taking over. It really sucks.