It is indeed exactly the same ppi as the 3GS, but the effect will be different because you're focusing on a wider array of pixels overall, from a greater average distance.
Here's a pretty good article about it:
http://www.tuaw.com/2012/03/01/retin...oing-the-math/
And as a nice bonus, there's a spreadsheet link in that article that has a row dedicated to the iPad mini.
What's the "closeness to retina display" for the mini?
At a distance of 16 inches away, 76%. This is compared to 61% for the ipad 2, and 123% for the ipad 3/4.
Spreadsheet:
https://docs.google.com/spreadsheet/...=0&output=html
So accounting for average viewing distance, the ipad mini sits squarely between the 3GS and the 4/4S/5 for perceived sharpness.
So I have some hope this this thing will be acceptable given the advantages in portability.
Here's a pretty good article about it:
http://www.tuaw.com/2012/03/01/retin...oing-the-math/
And as a nice bonus, there's a spreadsheet link in that article that has a row dedicated to the iPad mini.
What's the "closeness to retina display" for the mini?
At a distance of 16 inches away, 76%. This is compared to 61% for the ipad 2, and 123% for the ipad 3/4.
Spreadsheet:
https://docs.google.com/spreadsheet/...=0&output=html
So accounting for average viewing distance, the ipad mini sits squarely between the 3GS and the 4/4S/5 for perceived sharpness.
So I have some hope this this thing will be acceptable given the advantages in portability.