That was fast. Hours after Barnes & Noble introduced a Wi-Fi only version of its Nook e-reader and dropped the price of its 3G device to $199, Amazon responded by dropping the price of its Kindle e-book reader from $259 to $189.
Amazon's Web site has been updated, and the cheaper version of the Kindle is for sale now. The Kindle DX is still priced at $489.
Amazon said that customers who bought a Kindle that was shipped in the last 30 days are eligible to receive the price difference as a credit.
Barnes & Noble said users who purchased a Nook in the past two weeks can get a $10 refund - the difference between the new Nook price and a recent promotional price. Users who bought a Nook in recent days received a $50 gift card that could be used toward the purchase of the e-reader.
The discounted Kindle e-book can hold up to 1,500 books, includes 3G capabilities, and includes a six-inch E Ink screen.
The Kindle is also sold at brick-and-mortar Target stores. A Target spokeswoman confirmed that the Kindle will also be available at Target for $189.
Editor's Note: This story was updated at 1030pm Eastern time with additional information from Barnes & Noble and Target.
Originally posted to Gearlog.