Maybe the 130 million of 2007 and the 59 million of 2012 are different topics!? Amazon refers in the actual message mainly to its "Kindle Fire". So can't it be that the 130 mio are a general number for different topics in connections and the 59 mio are only to understand in connection with the kindle? I don't think that kindle sale was already so big in 2007 that 130 mio. would have been justified for this alone. Just my personal opinion ... What do you think?