[pickyaxe]

Yes, I would. I'd love an eInk reader that lets me read pdfs in portrait. I don't mind sacrificing a bit of bulk for that, and I don't value portability all that much (I use a bag).

With my H2O I've been reading pdfs in KOReader in landscape mode. It works for me, but the device is awkward to hold at this orientation, due to weight distribution and uncentered screen. Plus, reading a portrait-oriented document in landscape is awkward in itself because you can't see the entire page on the viewport at once.

The width of a 6.8" 4:3 display in landscape orientation is still 16% longer than the width of a 7.8" screen in portrait orientation. So, realistically, 7.8" is probably too small for comfortable portrait reading, even with an optimal pdf. To get the same width in portrait as my landscape H2O you'd need a 9 inch screen, and that's clearly too big for most people. So I'll have to settle.