I can understand the desire for a 5" device. Even though it doesn't tempt me much, it does seem to be part of the market overlooked recently. I think, perhaps, the manufacturers are thinking that 5" is hitting on the mobile phone display size and assuming that's what people will use if they want to read at that size.
I really like the Aura One for reading (it's a good size for my fading eyesight) but the touch inaccuracy (mentioned on another thread) makes it less good for highlighting and note-taking (I'm taking my New Leaf Book Club participation very seriously
). So I'll probably try a H2O2 and leave the Aura One with my wife where it has found a very welcome home. I've been holding out mainly on the possibility that Clara was another larger reader - but I doubt it.