Challenge away. The Android OS is based on Linux, not UNIX, but the basic principles are the same. My guess is that you are looking at it backwards. JB is smoother, and snappier. To me, it seems that they optimized JB so that it makes processes get on and off of the processor more efficiently, which leaves more time for the OS to do the basic work of running the phone. My phone has been on for 31 hours and the Android OS has only used 4.5 hours of CPU time. That tells me that for about 26 hours, the CPU was free to do other things. Pretty good by most OS standards.