For those of you who have rooted your Nexus S, now there’s Modaco ROM, which is a bit faster than custom Nexus S ROM, head over here for full instructions on installing the Nexus S Modaco custom ROM.
Some of the features of this ROM:
Based on the GRH78 OTA release
Packaged for ClockworkMod 184.108.40.206+
Rebuilt using the MoDaCo MCR optimisation scripts
Includes MCK 1.0 custom kernel with TUN and CIFS modules
Incorporates supercurio’s EXT4 performance tweak
Full up to date Google experience +