Plug roadmap:

Status	Type	Device 1	Device 2
In-process	PC Gameport	Analog Joystick(s)
In-process	C64 Control Port	C64 1351 Mouse / Paddles / Joysticks
In-process	Apple II Era	DIP Style Joystick	DB9 Style Mouse or Joystick
Planning	DEC LK201	LK201 Keyboard
Planning	Early Mac	M0110 Keyboard (phone line style)	DB9 Mouse (Also for IIe, IIc)
Planning	PC Bus Mouse	Inport / Logitech Bus Mouse