Please pardon the ignorance, as I'm just now getting started with this piece of the Arduino world (ADK on Due).
I noticed that in http://arduino.cc/blog/category/arduino/adk/ the author mentions: "The ADK2012 is based on the upcoming Arduino Due platform" - This seems to imply that ADK2012 should be directly compatible with the Due... has this not proven to be true?
I'm by no means an expert on that so someone with more knowledge of the matter should feel free to correct me.
The Due hardware is close to, if not exactly, identical to the ADK2012 kit if you take away all the bells and whistles. I've managed to get the Due working with the ADK2012 app, albeit with some latency issues. This is probably due to the 1.5.1r2 libs not supporting the newer ADK features.
The problem I've had, to my limited understanding, is that the version of the Arduino IDE that they're using for the ADK2012 resources doesn't take into account some of the quirks of the Due (eg. the 1200bps pulse prior to flashing). With the standard Arduino IDE (1.5.1r2), the libs are currently supporting the 2011 protocol. They're similar but there may be some extra functionality that will need to be added in. Trying to use Google's libs in the beta IDE fails since the ADK class names conflict and, fixing that, there's some issues with the conflicting of UOTGHS_Handler to be handled.
I know it's not meant to be exactly 1:1 functional with the ADK hardware but being able to use some of the functionality of that kit would be handy, especially the USB Audio parts. I've tried making some attempts at it but I don't know enough about the hardware to make any sort of real effort at porting all of the functionality over. Some idea about how the ADK libs function would be helpful to those of us wanting to attempt this.