Amazon released its 9.7inch display [Kindle DX](http://www.amazon.com/Kindle-DX-Amazons-Wireless-Generation/dp/B0015TCML0) on June 10, at $489 it is not inexpensive and deserves more careful evaluation before your purchase.
![Amazon Kindle DX PDF Technical Document](http://sanziro.com/wp-content/uploads/2009/06/amazon-kindle-dx-pdf-technical-document.png)
One of the new feature of Kindle DX is its build-in PDF support. The older Kindle and Kindle 2 requires conversion before reading a PDF document. We found the [post by Matthew Williams](http://www.matthewdavidwilliams.com/2009/06/12/technical-document-pdfs-on-the-kindle-dx/) useful to see how Kindle DX fare in terms of reading technical document PDFs. Matthew included a number of large resolution screenshots of Kindle DX in action with PDF technical documents.