Monoprice Select Mini, sight unseen

Some observations on the files that can be seen inside the firmware update file "m200-160615.rar" from Malyan Systems:

update.bin is clearly a modified version of Marlin, under the GPL3 license. Of course, neither monoprice nor Malyan Systems are offering the source
lcd.bin has some heavy indications of being based on the ESP8266. There's LGPL stuff in there, more license violation ahoy.

Other thoughts based on obsessive googling:

I've tentatively IDd the low current connectors as JST "XH" series with 2.5mm pitch (rated 3A)
And the high current connectors as JST "VH" series with 3.96mm pitch (rated 10A)
why are there no photos of the UI controller board?
The STM32 pins for the UI controller board are probably PA9/PA10 AKA USART1_TX/RX. Easy to sniff.
Logic section voltage is supplied by XL1509-3.3, a buck-mode switching regulator with a fixed 3.3V output.
Many parts in the HV section have part numbers that indicate they might work with a power rail higher than 12V (some people have mentioned using 13.2V)