In addition to the upgrade to last year's Kindle Fire, Amazon just announced a new HD version of the tablet, the Kindle Fire HD. We jump from a 1024 x 600 resolution right up to 1920 x 1200, with a larger 8.9-inch size to match. New screen coatings should reduce glare by an impressive 25%, and new stereo speakers combined with Dolby Digital Plus technology will give this Fire tablet the ability to pump out some serious tunes. The Kindle Fire HD runs a dual-core TI OMAP4470 and employs multiple WiFi antennas to help ensure reliable data connectivity. There's a front-facing camera with an HD ...