Having used a retina screen iPhone and iPod I'd say in my opinion the new iPad (which I haven't seen) is going to far exceed the kindle's screen in readability.

Having used a retina screen iPhone and iPod I'd say in my opinion the new iPad (which I haven't seen) is going to far exceed the kindle's screen in readability. Where I think kindle probably still has the edge is in ergonomics, specifically weight. The iPad is too heavy for me to hold like I would a physical book. (but I make do with this fact and use it anyway as one... and I've got the heavier first generation iPad.) All the other things the iPad does have a big impact, but as a pure reading device (iBooks is my killer app) the iPad is working out great for me, so I look forward to getting a third generation.