This screen (which may receive minor tweaking) allows the user to select one of two basic options: starting the Linux distribution immediately or, in case there's issues with the video card, etc, to customize Linux kernel boot options.
This is what the boot options screen that I just mentioned looks like. You can toggle a variety of boot options (up to 9 is supported with this approach) that have a variety of functions. Some of them make troubleshooting easier, while others facilitate installing Linux to your Mac. I plan on adding more before the final release. Please note that not all options are supported by all distributions.
Love it? Hate it? Have suggestions? Drop me a line. I'm shooting for a release date of the 30th of November and I'd love to get some feedback.