This is great. No more cmd+T to read a linked article in a new tab and then returning to HN. You got yourself a user.<p>Couple suggestions:
-Create a style for visited links. I find this valuable when perusing the list.
-Needs a "More" button at the bottom of the Home and New lists.
-A pane to view/submit comments would be nice. Maybe re-size the article pane by half and add a comments pane when clicking a comment link for an article.<p>I'm sure you have all sorts of ideas as this is just a prototype, but I really like it so far.