While addressing some public reaction to the iPod mini, Mac pundit John Gruber noted some interesting details on the new device’s size and weight as compared to the 3G (third generation) iPod: “I’ve also seen it argued that the mini isn’t even that much smaller than the standard iPods. But when you’re talking about pocket-sized objects, a few fractions of an inch in each dimension can add up to a big difference in volume. The iPod mini weighs 33 percent less (104 vs. 158 grams) and takes up 41 percent less space (3.6 vs. 6.1 cubic inches).”