Amazon just release a new model of Kindle HD 8,9 inch and Kindle Fire 7-inch on 6 September and here are the updated review of the advantage features about 2 great tablets :
These 2 tablet use the double band MIMO (2.4 MHz and 5 MHz) helps to improve the wifi speed, Kindle Fire HD has two screen sizes option with the high definition resolution 1.920 x 1.200 pixel and 254 dpi in kindle fire hd 8.9 inch and 1.200 x 800 pixel in kindle fire hd 7 inch.
There a lot of improvement in screen dispaly technology use IPS, special filter and sensor to reduce glare ( 25% compare with the normal Kindle Fire ). The Kindle Fire HD 8.9 is very thin 8.8 mm and weight 0.56 kg.
These tablets use the similar processor TI OMAP 4470, stereo speakers compare with mono in iPad, they are equipped with front camera for standard video conversation and HDPI port. The life time of battery are also extend to 11 hours in Kindle Fire HD 7 inch compare with 6 hours in the old Kindle Fire.
Thank to the Android 4.0 the multi account are implemented on Kindle Fire HD 7 and 8,9 inch, Users now have more controls on their Kindle Fire HD, they can set the reading, gaming and watching movie durations for children. One interesting feature is X-Ray apps that allow you to see the overviews information of a movie or a book even when you are watching them.
The Kindle Fire HD 7 and 8,9 inch is expected to sell at price of for 2 GB, 199 and 299 USD with 16GB. A special version of Kindle Fire HD 8,9 inch with 4G LTE connection and 32 GB not exceed 499 USD. There also a Kindle SD, an improved of the old Kindle Fire with 1GB (compared with 512MB on old Kindle Fire 7 inch) and some upgrade that improve performance to 40 percent and longer battery will be sell with the price of 159 USD. These two Kindle Fire HD 7 and 8,9 inch will be sell on 20 November 2012.
See more details and customer review here
See more at Kindle Fire HD Specs