Whimsically monikered Chinese chip-maker Allwinner has added a pair of ARM Cortex-A7 processors to its lineup supporting Android 4.2 or higher systems. The A20 is a dual-core design with 512KB L2 cache, dual-core Mali 400 graphics and 2160p HD video playback support, while the quad-core A31 packs a 1MB cache, PowerVR SGX 544 graphics and UHDTV (4k) video decoding talents. The A20 is pin compatible with its Linux-hobbyist favorite sibling, the A10 -- meaning devices such as the