What about this: Start with a freshly partitioned and formatted drive. Partition first as this will assure no leftover EFI stuff. Use Lizard to install Chameleon using the Bootloader folder in the Retail Pack 1.1b folder. Then drag the Extra folder to the root of the drive. Lizard installs the "boot" file as invisible. If this works for you, then someone needs to identify what in my installer package is malfunctioning since I have no way to test on any other Mini but my own which is an N280 with Ion graphics and 3 GB of installed RAM.
And this is what I did, I was having difficulties with booting Windows 7 on the internal hard drive, so I went ahead and repartitioned it as you requested. Next I used one of the Mini 311 boot disks to boot up my retail 10.6.0 DVD and installed Snow Leopard. Rebooted using the CD again and after the video played I finished setting up the system.
Once at the desktop I used a flash drive to copy over the Retail Pack 1.1b folder and using Lizard I installed Chameleon from that bootloader folder. I then copied the /Extra folder over to the hard drive and ran Kext Utility. After it was done I shut down the system, removed all of the USB connections (DVD drive and flash drive), then pressed the power switch. This is what it says:
No bootable device -- insert boot disk and press any key
The hard drive is setup in BIOS to be first in the boot order and I really don't know what else to say. A few things it could be, either Lizard did not install Chameleon or something to do with the files, or there is a problem with my system. I can boot just fine if I use the boot CD or a flash drive. I have not tried it yet, but I will bet if I use Lizard to install the bootloader from the Retail Pack 07 it will then boot just fine from the hard drive. I will let you know.
EDIT: Retail Pack 07 is mysteriously missing from Mowgli's files but I did grab 08 and have used Lizard to install Chameleon from that folder. Rebooted but got a KP as I still had the 1.1b /Extra folder installed. Booted up using the boot CD and changed to the 08 /Extra folder and ran Kext Utility. Now on the reboot it boots just fine.
Whatever the problem is it only seems to be with the later files. The earlier ones seem to work just fine on my system.