That's a good start and i like the UI. I had some issues on the iPad 2 where transitions weren't really smooth but kind of laggy. The comments could be better arranged (some kind of tree were not only the top-level comments are different). Ashamedlion does have a point about the weird colours and the few refinements. Still the best hacker news app i have tried and will be looking forward for updates. Keep up the good work!
Thanks!.For the comments I am going to draw the table separator in a way such that it shows the depth of the comment below it.I dont want to waste space on such a small screen.