> I really think Intel will be hard to displace on the desktop.
It will be hard but not impossible. If (for example) Nvidia were to produce a product with a tight integration between CPU/GPU - both technically and price wise that could be used to create a very competitive gaming PC (perhaps low to mid end) then worked with a few gaming companies so the major games worked on it. Made sure Windows and the basic office apps, Chrome, Firefox etc. worked well there would be a market, especially if the ARM chip gave a noticeable performance boost over a similarly priced Intel.
It will be hard but not impossible. If (for example) Nvidia were to produce a product with a tight integration between CPU/GPU - both technically and price wise that could be used to create a very competitive gaming PC (perhaps low to mid end) then worked with a few gaming companies so the major games worked on it. Made sure Windows and the basic office apps, Chrome, Firefox etc. worked well there would be a market, especially if the ARM chip gave a noticeable performance boost over a similarly priced Intel.