Yesterday, Intel published a blog post celebrating the 40th birthday of the 8086, which was the first x86 processor. But after the company boasted about the innovations that it's brought to the platform over the last four decades, it made what sounds like a veiled threat toward anyone emulating its technology without its permission.
It goes on to say that "Intel welcomes lawful competition", but "we do not welcome unlawful infringement of our patents, and we fully expect other companies to continue to respect Intel’s intellectual property rights."
While Microsoft and Qualcomm aren't mentioned specifically by name, their Windows on ARM efforts are the most notable example of x86 emulation that's happening right now. With the project, Microsoft plans to bring full desktop applications to PCs that use ARM processors.