Well... let's say I was only wondering, how complicated would it be to make servo-based robo-hand which could follow the moves of a hand in special glove. That's... five fingers, 3 joints each... 15 servos and 15 potentiometers (or similar joint-bend sensors).
And in the perfect world it could be driver with 4 pins:
- potentiometer number (serial input)
- potentiometer value (analog input)
- servo number (serial output)
- servo value (serial output)
But I'm sure it can't be easily done like that 
thanks for the reply.