This comment reminds me, there are actually a bunch of Android tablets that shipped with Intel Atom x86 processors. Intel worked some magic with libhoudini that allowed them to run ARM binaries surprisingly fast. If you're an app maker who actually cares about those devices (like my employer) then you end up building all your native code for x86 too. I recall the ARM binaries running at more than 50% of the native x86 ones, running optimized threaded and vectorized image processing code. I wish Intel would talk more about that library. I'd love to know what techniques it used.