Taken from the actual XDA thread:
- Galaxy Nexus Android 4.1 OTA
- Modified CM9 Kernel (Kernel Source)
- Hardware Acceleration
- Notification LED
- Cellular Rado (But No Audio so no Calls)
- Physical Buttons
- Maybe More
- Maybe more
With a laundry list of what's NOT working, this should be considered a working alpha build.
You can see a Youtube preview of the build and how to flash it here.
Keep in mind, this is for the i9300 Galaxy S3 and not the American Version. So flash with caution and to your heart's content.
The credit of this unofficial port goes to XDA members and devs Faaryab and Randomblame
Click here to view the article