Team CodeXecution.Com & Team ModControl.Com released RGH CPLD DualNAND Mod v0.1:

This little CPLD mod allows you to switch two nands direct with an installed Cool Runner like TX Cool Runner or other devices with the same chipset on your reset glitch chopped xbox 360 console.
The modified code isnt locked to a modchip, it isnt that particular and you can contend with the sourcecode shortly to modify more functions when you desire to do so.

Installation:
Add a 2nd NAND to your Xbox 360 (glimpse pictures/documentations), flash the XSVF file to your TX Cool Runner (or other devices with the same Xilinx CPLD) as usual, switch the NAND with the snyc button while coldboot the xbox 360.

Example:
OrigNAND: power on the xbox and hold the sync button until you see the ring of light
2nd NAND (with freeBOOT): power on your console as always (pressing power to use freeboot, hit eject to use xell/xellous/ xell reloaded)

Note:
Our current mod is only available for xbox 360 trinity (slim) mainboards, a port to other mainboards, sourcecode and a better documentation will be released very soon.
Use it at your own risk on Xbox Live!!!

Official Site/Download: modcontrol.com | codexecution.com

Source: Xbox-Scene Microsoft Xbox News