App store sales top $10 billion

Apple – Press Info – App Store Sales Top $10 Billion in 2013

Apple® today announced that customers spent over $10 billion on the App Store℠ in 2013, including over $1 billion in December alone. App Store customers downloaded almost three billion apps in December making it the most successful month in App Store history. Apple’s incredible developers have now earned $15 billion on the App Store.

That's an awful lot of happy developers. In completely unrelated news, is this the only place Apple uses the trademark symbol?