NAgain

Sorry for offtop, but I have some question about this SBC and Mezzanine extention before ordering: 1) Can I use power port on Mezzanine extention for powering main board? 2) USB WiFi is working, or I need to dance around with drivers/kernels etc? 3) Any body use 2 cams? And finaly. I can't understand - Armbian allready released for this board, or not? Thx!