Update: In September 2012, Amazon discontinued the oversize Kindle DX, although the model was still available through online auction sites.
The Kindle DX is Amazon's plus-size iteration of its best-selling eReader. It functions in most ways like the Kindle Keyboard, except that a Wi-Fi-only model is not available in the DX size, just a 3G version. The 3G works wherever the AT&T network is available, and Amazon pays for the 3G plan for life.
Like the Kindle Keyboard, the DX model offers a PDF reader, an MP3 player, a text-to-speech function for reading books aloud, and access to nearly 1 million books in the Kindle store. One difference in the two models is the DX has a built in accelerometer, which allows easy switching from landscape to portrait modes; users had to navigate through menus for the same function on the smaller Kindle Keyboard.
CostHelper Bottom Line: The Kindle DX is no longer available through retailers or the manufacturer, but can still be purchased through online auction sites. The auctions often end well below the original MSRP $379, typically between $150-$200.