Just yesterday the Nexus S had been overclocked to a staggering 1.2 Ghz, and now today, Morfic from the XDA-Developer forums has further released a kernel patch that up's it up another 100 Mhz. Yes indeed, now at 1.3 Ghz! The bluetooth problem is still being looked at to be fixed for the time being. Here is what's been the latest posted on the forum:

Trinity13_V1.3

Changes:

Tweaked voltagesFurther build tweaksOverclocked to 1.3GHz

TODO:

Fix Bluetooth

This is for Bionix NS1

Flash from recovery, reboot, enjoy.

Please consider manufacturing tolerances whenever flashing an OC or UV Kernel and stick to the kernel supplied by your ROM if things don't work out with regard to stability.

Running your hardware above the manufacturer's specifications may void your warranty.

The first Trinity for those who want to stay at 1.2GHz and didn't like V1.1:

Trinity12_V1.0