After months of speculation, Apple today officially announced the iPad mini, a smaller version of its iconic tablet. The iPad mini has a 7.9” screen diagonally and a 1024x768 resolution. It weighs .68 lbs, 53 percent lighter than the fourth-generation iPad, and it is 7.2 mm thick, 23 percent thinner than the fourth-generation iPad. It comes in white and black with slate-style rear casing. Phil Schiller compared the iPad mini to 7” Android…