Hey Gregg, I pointed this out in the subforum for 'The Little Prince' and people said I should point it out to you since you're the continuity guru.
In 'Deus Ex Machina', Locke sees a dull, yellowish light coming through the hatch window. It looks like this:
In 'The Little Prince', Locke sees a big white light through the jungle, which he then tells Sawyer is the light from the Swan that came on as he was looking into it the night Boone died. But we didn't see the big white light coming from the Swan until season 2, episode 1, 'Man of Science, Man of Faith':
Just wanted to mention it. Certainly not something the casual fan would notice, but hey, we're nitpicky die-hards over here.