These guys seem to be partnering with the developers of DVDFab to bring full Blu-ray ISO / folder structure functionality to the higher-end box (AV200).
The AV200 appears very interesting with these specifications:
CPU: Cortex™-A7 Quad-Core 1.3GHz (AllWinner A-31)
GPU: SGX544MP2 Eight-Core
RAM: 2GB DDR3
Wi-Fi: 802.11 b/g/n
Full specifications here: http://vidon.me/android_blu_ray_box.htm#specifications
HD audio passthrough is being promised. Blu-ray menu functionality too! If these specifications pan out, it would make an interesting box indeed. Just placing this thread here to get user opinion / owners to chime in with their experience.