Ipad mini will have more then ipad 4 just because its a smaller screen, which is why the iphone 5 will have more then either of them. Why? I don't know the technical reason, I just know that this is the case.
If the iPad mini is given a retina display it'll have the exact same ppi as the iPhone 4, 4S and 5.
And to the OP, no, I don't think there's a point in Apple releasing devices with even higher ppis than what they currently have. And where exactly has this been rumoured?
Ipad mini will have more then ipad 4 just because its a smaller screen, which is why the iphone 5 will have more then either of them. Why? I don't know the technical reason, I just know that this is the case.
There's full HD smartphones now but can they be that much better?I doubt they will for quite some time.
Other devices are well over Apples ppi and look sharper, though.
HD and PPI are two entirely different things.The current retina display is already well beyond HD
HD and PPI are two entirely different things.