Note that this is a different issue from that dealt with in the prior FAQ, where we were talking about beds that contained plants right through the winter. The present FAQ, by contrast, relates to empty beds, and the question regards whether the old mulch is still viable (and, if so, what you should do with it)....
The screen of the iPad Mini, left, is 7.9 inches on the diagonal, compared with 9.7 inches for the iPad Air. Apple is now selling the new iPad Mini, the smaller brother of the pleasing iPad Air, which I reviewed a couple of weeks ago.
The iPad Mini has a 7.9-inch screen. The original iPad Mini had a 1024x768 screen resolution, but all other iPad Minis have a Retina Display with a resolution of 2048x1536. This resolution combined with the 7.9-inch screen measured diagonally gives the iPad Mini a pixels-per-inch (PPI) of 326.