There have been many opinion pieces written about this - mostly focusing on the reappearance of music tastes some of us would rather forget. There has also been a little commentary on what this could mean for publishing however - and that is where most of this will focus.
In music, you must remember that there is a more open ecosystem than books. Pretty much anywhere you download an MP3 from, you can move that around your computer, and are more likely to put it on any number of different devices. Amazon is clearly using this as a way to advance their market share in Music where there are a lot of competitors, but primarily iTunes. Amazon has access to vast amounts of consumer data from over the years - and they have very wisely decided to capitalise on it. Whether this has come about as a result of a condition which has been buried in Amazon's deals with labels for years, or is a new arrangement - it says a lot about how far the music business has come. From Amazon's perspective, I'm surprised it has taken them this long to be honest - but that may be indicative of the rights negotiations involve.
The publishing industry is at a very different stage at the moment, however. DRM and propriety formats, namely Kindle, still exist, and Amazon has a huge market share. You must also remember that since it launched, Amazon has also had a bigger market share in bookselling. Bookselling is where the business started, and I would bet that Amazon have probably sold a lot more books than they have music, as iTunes and high street stores dominated until the last few years. Therefore the implications of this, or a similar scheme, coming to Kindle could be huge.
In terms of market share, Amazon would become even stronger. Your personal library for roughly the last 15 years - even in cases where you may have resold the book - now available again to you. As far as ecosystems, and a proposition to the customer (particularly past heavy users), it is impossible to beat. Nobody else holds this much data on the publishing industry. Waterstones, the biggest retailer in the UK, has had several failed attempts at online bookselling, I doubt they hold useful data going back very far. In fact, for those of you that remember, Amazon used to have an online partnership with Waterstones between 2001 and 2006, so it's likely that Amazon own their early data too...
Now, I'm all for choice of whether to read my books on an eReader or in print, it is after all a major cornerstone of our business model. But the use of all of this historical data could only serve to increase the hold Amazon has over the publishing industry. A hold they are building upon with a closed ecosystem. One that means if you want to change to another device, you have to lose EVERYTHING you have bought before. Buying an eBook from Amazon is essentially renting it from them, and I don't know about you - but I like to own the things I pay money for! It is no secret that Amazon has been squeezing publishing margins very tightly - and for an industry that is already very hit or miss, and operating on tight margins - this is very dangerous territory indeed.
It is also worth noting that Amazon could expand this further. DVDs and Video could be another potentially huge opportunity for them with films and TV shows. The three combined would make a very powerful proposition - one that already includes Amazon Prime and its tie-ins to LoveFilm and free Kindle downloads. Two out of three could give them the power to force the third - could the publishing or movie industry afford to refuse these negotiations, and potentially be barred from sale? Android couldn't touch them and Apple would probably struggle too, neither of them have anywhere near that amount of sales data or clout. This could be how Amazon becomes the winner of the content game.
Would you use a publishing equivalent of Amazon's Autorip? Would it be a deal breaker over any other platform for you? Feel free to discuss in the comments below.