Christmas Day 2012 saw some 2.5 times the number of Android and iOS devices activated compared to the same day last year, analytics firm Flurry reports, with a staggering 332 percent increase in the number of activations on that day compared to the usual average daily activations for the rest of December. Compared to some 6.8 million mobile devices activated last year on Christmas Day, Tuesday's total was over 17.4 million units.