Though slow, there has been progress in enabling the ATmega32M1 / ATmega64M1 uC inside the Arduino. Today new Arduino IDE support files are available under the "Arduino Libs" resource tab above. They corrects a few errors, and a new 'version' is available that is compatible with the latest Arduino IDE 1.6.7 without producing warning messages.
this point we have demonstrated the basic of the porting effort, SPI
has been demonstrated to functions - as well as I2C using one of the
SoftI2C libs. The advanced PCS (Power Stage Controller - think really
smart PWM) is working, as is the amplified differential ADC inputs. And
a 1st step at utilizing the built in CAN subsystem was accomplished,
via a rather ugly rough-n-ready porting of the Atmel AT90CAN lib.
Over the coming months I am looking to create a more 'Arduino like' library for the CAN subsystem, and may also look at a like one for the PCS subsystem. If anyone is interested in helping out, feel free to contact me!