Apple&#x27;s recent decision to promote LLVM bitcode as a canonical binary form for apps (&quot;promote&quot; meaning mandatory on the watch) makes me suspicious they&#x27;re planning something similar in their future A-series or S-series chips.<p>The paired relationship between the phone and watch could probably benefit from either side being able to do a little computation and coordination without having to spin up the big cores.<p>There, of course, I&#x27;d expect Apple to make it developers&#x27; problem to designate which thread(s) could operate in a limited environment.