You can read them in the NOOK and Nook Color easily.
As publishers, we are given a Format Guide by B&N whenver we upload our comic/manga pages online for sale through the Nook market. It involves a lot of tweaking with the contrast, size ratio, etc...
Since the beginning of 2011, I've sold over 300+ paid downloads of my manga/comics in B&N from Nook readers/users, and all feedbacks are great!
Thanks! That cover looks good, although I'll have to wait until I get the Wi-Fi to work in the house. Or of course I could always buy it in a B&N or Starbucks...
BTW I tried a couple of manga from June and found that I could read the text (although I did have to put on my close-up glasses ). The only text that gave me a problem was the text in a lighter shade (such as the character's thoughts).
And now that I've succumbed and bought a Nook color tonight, who knows how they'll look on that?