I briefly experimented with HN in a discreet RSS reader (Feeds App), and I won't let it on my computer outside the browser again as it was too distracting. I also don't keep any of the iPhone apps for HN I've tried around for that reason. Your designs look nice, though.
Yes, HN became ever-present unless I closed the program. And if I did, why have it? When it's in the browser, it's much more optional and I can work all day if I like without seeing any reminders of it.
