I don't recall activating my new Android tablet, whatever that means.
Where do I sign up?
You install an app that uses Flurry Analytics. Done.
Flurry isn't an ideal sampler though - it's much more used in iOS than Android apps, and seems to be persistently under-counting Android because of that.
Claim all the Fandroids, because Flurry proves that Android users use less apps. Which is easily shown by comparing cross platform apps that of course show usage patterns on both platforms fairly.
*Sigh*. Android users use less apps, yes we all know this. That also means doesn't it that the thing that's being claimed here can't be accurately measured from what Flurry can tell you. If Flurry only knows about a device when a suitable app is installed, then Flurry being less used for Android apps, and Android users installing less apps, is going to undercount Android *devices*. This article is trying to measure *device* numbers, which it's unsuitable for doing so. Give me comparison figures from Facebook, or some ubiquitous cross-platform app, but Flurry itself is flawed.