One of the key disappointments for many when seeing Apple unveil the iPad mini was its relatively small resolution. While it is on par with the iPad 2 (and on an even smaller screen), competing products like the Nexus 7 offer somewhat higher resolutions (and on screens almost one inch smaller).
According to the rumor mill Apple is planning on bringing the Retina display to the iPad mini (not that this would be a surprising move, also something we’ve continuously heard in the comments). Taiwan-based backlighting industry sources also claim that — aside from a possible 2048 x 1536 resolution (the same as on the iPad 3 and iPad 4) for the iPad mini, which will bring the PPI rating all the way to 324 — the full-size iPad will be lighter; Apple is reportedly planning to ditch one of the two LED backlighting bars to achieve this. As usual, file all the above under the “R” category.