The iPad Air may very well be the hottest gift for holiday shoppers this year. Localytics saw a surge in iPad Air use over Black Friday weekend this year as activations for the device increased by 51%, making it by far the most-activated smartphone or tablet in the early days of holiday shopping. Other Apple devices look like hot items for shoppers this year as well since Localytics found that iPad mini and iPhone 5c activations both increased by 26% over the weekend. Other devices that saw big surges in activations included the 7-inch Amazon Kindle Fire HD (23% increase) and the Samsung Galaxy S4 (20% increase).