Kindle Fire HD features a stunning custom high-definition display, exclusive Dolby audio with dual stereo speakers, high-end, laptop-grade Wi-Fi with dual-band support, dual-antennas and MIMO for faster streaming and downloads, enough storage for HD content, and the latest generation processor and graphics engine-and it is available in two display sizes-7" and 8.9".

ENGADGET: Kindle Fire HD 8.9 ships today, 4G version to follow next week

Otherwise, we're still looking at the same 1.3-inch OLED display, line-in recording including the ability to record in WMA stereo via an external mic, an FM tuner, and about 20 hours of music playback.

ENGADGET: JVC Victor's Alneo flash players get gapless playback and USB streaming

With 2X the performance and 2X the power efficiency, the ZMS-40 delivers ground-breaking media capabilities to handheld devices such as tablets, including ultra-high-resolution H.264 HP decoding of up to 3840x1080 for true 1080p 3D stereo, a rich and interactive desktop browsing experience, 2560x1600 (WQXGA) display resolution support, higher-quality video encoding and immersive OpenGL ES graphics and future support for High Efficiency Video Coding (HEVC).

ENGADGET: ZiiLabs debuts '100-core' ZMS-40 processor optimized for Android 4.0, you can call it quad-core