But a close look at the capabilities of the $489 DX show it to be a powerful tool for business and education as well.rnOther than size, there are just two major hardware changes. The next page/previous page buttons on the left side of the screen are gone, and Amazon added a motion sensor that automatically rotates the display image, sometimes a bit sluggishly, when you turn the device sideways. There are also some relatively small design changes, plus one new trick that really makes a difference: The big screen allows you to handle large - format documents, including ones you create, in very appealing ways.
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