It's always very close to the official latest Nexus S kernel.
This kernel don't modify anything on your system (like overwriting modules), so you can switch back to the official kernels: nothings changed.
It is designed to run on the latest unmodified Gingerbread version from Google.
ATM, the kernel is for 2.3.3 and support Voodoo sound and color using the previous color profiles (no washed out colors)
Kernel sources: https://github.com/project-voodoo/li...nexus-s-voodoo
Test, on an unlocked bootloader:
fastboot boot Nexus-S-Voodoo-latest.img
fastboot flash boot Nexus-S-Voodoo-latest.img