While I think it's unrealistic to write Intel's CPUs off any time soon, ARM has been having a very bright present for years, haven't they? There are roughly 5x as many smartphones sold every quarter as there are PCs and the vast majority of those phones are using ARM-based CPUs -- in terms of units in use, there are way, way more of them out there than there are Intel CPUs.

As for ARM CPUs seriously moving into the PC space, who knows. It hasn't happened yet, but there's an ever-increasing amount of smoke around the likelihood of ARM-based Macs. It's silly to think that in five years Intel will be a destitute, hollow shell of its former self -- but it's not silly to think that ARM-based PCs are going to not only exist, but be both common and seriously competitive.

Do you see Apple selling its CPUs to other PC makers? If not, which ARM CPU licensee do you see as being competitive with Intel in the PC space?

Would be hilarious if the answer to your second question was Qualcomm.

Well, it probably is Qualcomm; they're likely ARM's biggest licensee in the mobile CPU space other than Apple -- and may be bigger than Apple by volume, when you consider how many Snapdragons there are out there.