Google Now may have been developed specifically for Android 4.1, but the enterprising folks at XDA-Developers have managed to port it over to any AOSP-based ROM — that means any ROM, like CyanogenMOD, that was built not by a manufacturer but from the Android Open Source Project.
The procedure is a bit complicated — you must replace the Google Search APK in the system folder and correct the permissions, which requires root access — but so far people are saying that all is working quite well.
As usual, we recommend making a Nandroid backup of your ROM before performing any system-level changes, even if you know what you’re doing. Check out all the good stuff over at XDA-Developers.
Via: The Verge