ha! I forgot the other guy saw Charlie too... though that guy could've been Hurley's imagination as well. Anyway, I love the idea that he's dead but still "there", in a way.

I agree on your interpretation... Jack must come to terms with the idea that he would've killed Locke, and it's probably going to hit him quite hard, later.

Finally, I liked the fact that we knew what Hurley saw, as well. A few answers, here and then, and in general the feeling that our curiosities are going to be satisfied, somewhat. It's more... relaxing, in a way. :)