If you own a Nexus S handset then you will be over the moon to know that a new developer over at XDA Developers has managed to get an ICS AOSP build running on it and is now sharing it with everyone too.

Working
- 3G
- 2D/3D HW acceleration (some glitches)
- Audio
- Camera
- GPS
- Face Unlock
- WiFi (after applying wifi patch)
- BT
- ???
Not working
- Data usage statistics
- USB (adb working)
- Camcorder
- ???
Kernel
The kernel is custom build from the aosp source (same as stock 2.3.7) with the following changes:
- mxt224 patch to make touchscreen work (patch)
- pvr-driver backported from aosp tuna kernel (patch)
Other kernels will not work unless they include the patches above
Notes
- device config for this build - source
- pvr updated to 1.8 from omap-tuna kernel - patch
- imgtec drivers from maguro - drivers
- mxt224-patch from syndtr - patch
- audio and camera library from beezy’s ics sdk port
- gapps from paul’s leaked ICL23D dump
Download Nexus S (Use at your own risk!)
http://www.multiupload.com/F0F156G363
Download Nexus S 4G (Use at your own risk!)
http://www.multiupload.com/F2FZ1IJY3T
WiFi Patch (both) - Will connect after this patch
http://www.multiupload.com/WLXALMEMW9

Excited? I bet you are! I guess we can expect to see more and more of these ROMS appearing over the coming days.