iPad mini has 7.9" screen at 1024*768 pixels = 162 ppi. That's not particularly impressive for reading. It looks nice, but screen wise it is a year behind the Fire HD and similar 7" tablets. It is certainly a good choice for those wanting a smaller iPad for web surfing, etc. I don't think it will be very good as an eBook reader though. I suspect the iPad mini 2 will have retina and then it will be a terrific reader.