I have a prs-505 and I am very happy with it - I was excited to see the 700 in a borders last night next to the 505. Much to my utter dismay, the contrast on the 700 is really poor and even more so when sitting next to the 505 - I would have been really disatisfied if i had ordered one of these online to replace my 505. Swiping my finger on the screen and a backlight just does not seem like a fair trade for a quantum loss in readability