Jan 2, 11:14 PM. Maybe you can say that with OS X and and even Windows, but IOS is different in that the user can't run anything that isn't built in or doesn't come from the app store. That's what Android fans call "closed" or a "walled garden. ... A lot of people have more than 5GB in their music collection, so for these people the Amazon service doesn't work. Purchase an MP3 album from the Amazon MP3 Store by 11:59 PM PST on December 31, 2011. ...