Think of why the iPhone existed in the first place. It was because Jobs saw the writing on the wall and knew that cell phones were bound to destroy the market for the iPod, Apple's moneymaker. Before making the iPhone, he made the Rokr and Jobs threw massive amounts of resources into the iPhone at large risk to Apple. He bought up the patent for multi touch back in 2005.
I honestly think people overlook this aspect of Jobs leadership, basically from the time he returned on Apple he doubled down on mobile computing repeatedly throwing 50% of Apple's marketing budget into the unproven iPod for instance. Why was Jobs able to see the writing on the wall and not Intel? I think Steve Jobs himself said it best:
https://www.youtube.com/watch?v=P4VBqTViEx4
Intel itself was NOT totally blindsided by the mobile revolution. Intel Atom development started in 2004. Intel Atom could have dominated the market. There were Intel Execs pushing Atom. But all the R&D was pumped into the desktop and server business, the quality silicon was reserved for the desktop and server business, Intels execs didn't want these inexpensive chips for what were presumed to be peoples secondary computers to cannibalise its expensive desktop and server chips, and the strategic vision was simply bad. You can apologise for it but the mistake may have doomed the entire business and plenty of companies did not make the same mistake.
Intel wouldn't even exist if they didn't already make such a shift away from the memory market into the microprocessor market firing most of the their company in the process. Intel had leaders with strategic vision and guts back in the day, and the senior leadership simply weren't good enough to commit to mobile when that bridge had to be crossed.