Is there a mechanism to skip directly into demo mode on the live CD?

[akarasulu]

I'm using Ventory to boot with a persistent image and it works great. The need to set the keyboard, language, and explicitly enter demo mode on each boot is getting a bit irritating. The bootconf_replace plugin allows me to replace the ISO's isolinux.cfg and inject kernel parameters. Are there any parameters I can set to bypass early configuration and go straight into demo mode?

Thanks in advance!