Yes, the title is tricky, don’t be afraid Arduino still uses the ATmega168, this project is very similar to the Arduino concept, but also very different. It is a small development board which uses a PIC micro controller with native USB support, the author states that this is the main advantage over Arduino, but there isn’t available a user friendly IDE with custom language. Although not everything is lost since for the PIC18F family you have a feature limited C compiler made available from Microchip, C18. The author also states that he launched his CUIduino board in 2005, roughly the same time with Arduino, maybe is true but at least the name was inspired from Arduino.
It is a great alternative for the PIC community, but in lack of simplified language, it still remains just another development board.
PIC based Arduino: [Link]