http://isource.com/2008/06/19/itunes-has-sold-5-billion-songs-how-big-will-the-app-store-numbers-be/ #1 Source for iPad, iPhone, iPod, Mac and AppleTV Fri, 20 Jun 2008 00:55:09 +0000 hourly 1 https://wordpress.org/?v=5.4.6