If this was a drone and was just using the mobile frequencies for communication, it would probably use an off-the-shelf cellular modem module to communicate normally over the cellular network. A special testing authority from the FCC would not be necessary.
Windows is the last remaining bastion of the keyboard-accessible GUI. Mac never had it,
Huh? OS X is completely keyboard accessible (though there's a thing that you need to flick in System Preferences to enable it). In any OS X dialog that uses the standard NSAlertPanel interfaces, enter will perform the okay action and escape the cancel action.
Windows excels in building user facing apps with good UI and good experiences
An odd quote about an OS that manages to get the buttons in the wrong order for basically every dialog box. Quick quiz: In your web browser's tool bar, does the left or right arrow mean forwards? In any random Windows dialog box, is the left or right button the proceed forwards one?
"Be *excellent* to each other." -- Bill, or Ted, in Bill and Ted's Excellent Adventure