Robin2:
What does the Linux CNC website tell you?
sigh was just looking for a quick summary from someone familiar with the software, but if all I'm going to get is a RTFM, then nevermind.
EDIT: Also, I was asking because the way MarkT said it, it sounded like he was suggesting it as an alternative to GRBL, but the website seems to indicate it's just Linux software, and requires an external Arduino.