Interesting piece of work here. With this new Python Library, one can access all of the pins of the R-Pi GPIO as GPIO format and standard. There are also some added modules to add motors, LEDs, Servos, etc., to the GPIO without needing to set up the large code to initial them. But the question is, as I posted on their blog thread, are the Serial and IC2 ports on these can still be used as such or are they blocked out to be used as GPIO?
 
I also asked does this works on the older Model A/Bs? Though with the smaller GPIO, the Model A/Bs can have more GPIO with such programming. Furthermore the hidden GPIO (the 8 pins next to the main GPIO) has 6 extra GPIO if you add your own header to it.
 
Here's the link to the article: https://www.raspberrypi.org/blog/gpio-zero-update/

very cool. Like a good update!