Apple's new iPad Air went on sale on Friday 11/1, and according to our tracker, it's having a remarkable opening weekend. As of this writing, the Air is now making up 0.69% of active iOS tablets using apps in our network. While that's objectively a pretty small share, it stands out when compared to recent iPad launches. After the opening weekend a year ago, the iPad 4 had just 0.14% of activity, and the iPad mini had 0.21%. That means the Air is seeing five times the usage the iPad 4 did two days after launch - and more than 3 times that of the iPad mini.