Amazon Re-Kindles the Fire, Sony Shakes Up Entertainment Unit, and 3 More Hot Stocks Inc. (NASDAQ:AMZN): Amazon has brought two new tablets into the Kindle family, the 7-inch and 8.9-inch HDX models, as well as given the Kindle Fire HD a price cut and a refresh. The new units sport high-resolution displays and Qualcomm’s (NASDAQ:QCOM) quad-core Snapdragon 800 CPU. The Wi-Fi-only 16GB 7-inch HDX goes for $229, and a comparable 8.9-inch HDX for $379. Higher-capacity and 4G models are also offered; as for the Kindle Fire, an 8GB model is now available for just $139, and a 16GB model for $169.