Love the elusive term "support" (as in A supports B).
The full-blessing term I'd like to see is 100% compatible on device functionalities.
Does is support COM port, USB-OTG, 9-axis DOF sensors, WiFi/BL/BLE encapsulated virtual-COM port (reverse telnet), all Android libraries/API, etc., etc.?
No doubt the goal is to make it 100% compatible, but are we there yet?