I recently went about making the current Light Pre Pass system run on the XBOX 360, and had to fix some issues that appeared there. As a result, the next article to go up will be a rewrite with all of these fixes included. I should also be able to provide the sample code at the same time.
This time around I will cover Point, Ambient and Directional lights in the same post, as well as including information about an alternate light buffer format that allows for improved specular + per-material specular.
Expect this either during the weekend of 20-21st Dec, or shortly after that.
Unfortunately I could not test the code on the XBOX the first time around due to subscription issues, however everything is fine now, and I can and will test on both XBOX and my desktop PC beforehand. (Perhaps also other PC configs depending on who I can find online at the time, and what other machines I have on hand 
)