[eco]

The Android Market app store was the biggest part and served as the framework but Google Play wasn't a renaming of the Android Market but rather was created to merge Android Market, Google Music, Google Books, and everything else Google sold to consumers into one store. Android Market wouldn't make sense as a name because you don't need an Android device to buy anything, with the exception of Android Apps, on Google Play (though if you want one you can buy an Android device on Google Play). Google Play media purchases are all playable on your computer.