The Amazon Kindle isn't the only e-reader line on the market, but it has been the most popular since it first launched back ...

and is the lightest and smallest ereader Amazon has ever released. The most recent Kindle to appear is the third-generation Paperwhite, which sits between the budget model and the Voyage.

Now Amazon has returned with an even better version that features a 7-inch version of the 6-inch 300dpi display carried by its predecessor (and which is still on the Kindle Voyage and Kindle ...