John Gruber of Daring Fireball did the math and reached the conclusion that in order to maintain the same aspect ratio as the big iPad (thus making it a small iPad, and not a big iPod), the smaller tablet would have a 7.85-inch screen diagonally, with a resolution of 1024 by 768 pixels.
All in all, this would actually mean that at 7.85-inch diagonal and 4:3 aspect ratio, the smaller iPad would have almost 40 percent more screen estate than 7-inch tablets like the Nexus 7 or Kindle Fire.
Since the screen size debate has been the main focus on the smaller iPad, little is known about the other specs. Boy Genius Report reports via Chinese-language site MyDrivers that the smaller iPad would cost between $249 and $299 at launch, some $50 more than the starting price of the Nexus 7 and Kindle Fire. In a separate report, the site also showed purported case renderings for the smaller iPad, indicating it would be 7.4 millimeters thin (new iPad is 9.3 millimeters thick), a hair over the 7.3 millimeters thin iPod touch.
This story, "iPad Mini: what we know so far" was originally published by PCWorld.