I got pointed to an article on snook.ca about frameworks and was captivated by the design.
The way the comment entry doesn’t scroll with rest of the page is interesting. Can’t decide if I actually like it. I’ve been conditioned to dislike things that don’t scroll, but this may actually be a useful idea. Of course the arrow implies you are commenting on what it is pointing at, which could be a comment and not the entry.
I really like the way he highlights his comments differently than other comments. This allows you to scan the comments to see his responses. May have to implement that here.
Also cool is that if you click preview, it puts your comment at the end of the list. That’s cool too.