Amazon officially debuted the Kindle DX, which will be released this summer and is currently available for pre-order on a first come, first served basis, and you’ll be notify estimated delivery date via e-mail. 

The Kindle DX has a 9.7" e-ink display and offers 3.3 GB of storage versus the Kindle 2's 6" screen and 2 GB of storage. Rather than knock down the $359 price of the only three-month-old Kindle 2, the Kindle DX simply enters the market at $489 and creates a new size-based tier. 

Buy: Amazon