You just cant keep the Android community down. When they want to get something done, they do whatever it takes. It has been no different with people’s demands to see Google Now brought to their non-Jelly Bean devices. Developers over at XDA are beginning to bring the new service to Ice Cream Sandwich devices, and they are getting close.
As of right now, there is an APK available that is in the early stages of development, however, devs are making progress as you read this. You have to be rooted at this time in order to do this as it requires removal and installation of /system/app files. Voice is still broken, but everything else apparently works at this time.
If you want to follow the action or try out the test build, check out the via down below.