I'm thinking of purchasing an Amazon Paperwhite and wanted to know if there is a way to also get ebooks from Barnes and Noble as well as books from Google Play. Those who do read ebooks know that pricing on specific ebooks can be different so I'd like to use the Paperwhite device for books I've already purchased off of Amazon. Does anyone know if this is possible? I'm not talking about the free books either. I'm not sure if their is a hack or unlocking option for the Paperwhite which still allows it to function normally, but any information about if it is possible to get my previous purchased books onto the Amazon device.