I really like not having a lock screen and was happy to see it as a standard feature in the new rom under settings/CyanogenMod settings/Tablet tweaks. On a down side (And not sure why the change), when you select this option, the volume rocker will now wake the phone as well. For me, I hit those buttons way too often by mistake.
However, I found that you can disable this by editing the system/usr/keylayout/sholes-keypad.kl. Removing the word WAKE on the VOLUME_UP and VOLUME_DOWN lines. Reboot to see the effect.
ChevyNo1: Possible that this could be set standard in your rom?