It did seem very MS vs Apple, but it's true that Apple's walled garden prevents those later explosions on one of the 10% peaks. The iPhone has been around for

It did seem very MS vs Apple, but it's true that Apple's walled garden prevents those later explosions on one of the 10% peaks. The iPhone has been around for several years, but it seems there have been no such growth in it. Each app is self-contained, and is explicitly forbidden from becoming a new center.