I'm pleased to announce that the first stable version of the Babyduino project is now available. You can get more details from the project page and browse the source on the GitHub repository.

This initial version supports the ATMega8, ATMega88 and ATMega168 using the internal 8MHz oscillator. As well as full integration with the Arduino IDE the project provides circuit diagrams in Fritzing format to use as a basis for your own circuits.