Tracking data from Fiksu suggests that iPad Air adoption may be outpacing both the iPad 4 and the iPad Mini by around four to one. The numbers are as yet very small, but three days in, iPad Air usage hit 0.8 percent of active devices versus less than 0.2 percent for the iPad 4 by the same time …

The graph does need to be viewed with some caution, as it’s based only on usage of Fiksu’s own apps, and we also need to remember that at this point last year many iPad 4 owners were holding off for the cellular model, which launched a fortnight after the wifi one. All the same, it looks like a decent start to say the least.

Fiksu’s data also confirms the rapid pace of iOS 7 adoption compared to previous releases, now running on almost 75 percent of iOS devices.