For those who like to interact directly with an android device. The expansion headers clearly follow the Arduino layout.
- http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en553673
- http://ww1.microchip.com/downloads/en/DeviceDoc/PIC24F_ADK_Schematic.pdf
Personally I think it is a pity that the board has no wifi on board as imho that's the way to interact between Arduino (etc) and Android. Wireless (of android devices) is great added value in terms of user experience, and from architecture point of view it is (in theory) device independant.