How many of you are using it an e-reader? How is it on your eyes? My husband has an iPad and i use an Incredible phone. I was hoping I could use the iPad as an e-reader, but I'm finding that it's really hard on my eyes. Now I'm debating between a color Nook or a Galaxy Tab. I love the android os and would enjoy the added benefits of the G Tab, but if the screen is like the iPad I wouldn't be able to read books on it and would instead go for the nook. thoughts?