"We are converging on a single device format in mobile and that’s driving some important changes in usage. We are in the phablet era." I don't believe the data

"We are converging on a single device format in mobile and that’s driving some important changes in usage. We are in the phablet era." I don't believe the data Flurry presented can lead us to say that the device format is driving changes in usage. I believe that looking at usage, per device, you're actually just segmenting the usage of the demographic that purchases that device. For example, Fred has a graph that shows medium sized phones have a 100%+ increase in Sports usage. That may be due to the fact that most medium sized phones are being bought by middle aged men (who drive the majority of sports usage)