AinOhd – What halachik issues doe iPad have over other devices? You are on YWN, isn’t that a halchik issue?
Nook may be better for because it looks and feels more like paper. You are less likely to get headaches form something like that. LCD screens like the iPad are still screens.
[Psst… YW Editor, surprised to hear me say that? 😉 Yes, I do love my iPad.]