Google Now did seem at first glance to have been developed specifically just for the recently announced Android 4.1 Jelly Bean operating system, but there are people good people over at XDA-Developers did spend the past week or so working hard, and having successfully porting Google Now over to any AOSP-based ROM. In layman's terms, that would mean any ROM out there, including CyanogenMOD, which was specially built from ground up from the Android Open Source Project – and not by the manufacturer themself.
Ubergizmo , Google Now ported to Android 4.0 with AOSP support, Google Now ported to Android 4.0 with AOSP support
