I have just made a USB boot stick using MyHack 3.1 and have added the D630 lion boot package and replaced the Extra folder on the stick with the one from the boot package. When I try to boot off my stick I get KP. Attached is a screenshot of the KP in verbose mode.
I have disabled wifi in the BIOS as a troublshooting step.
As an aside, I used this site and its tools once before to get Lion installed on this very same laptop, not sure why its not working now, the hardware is the same as before.