I'm learning the DUE and I have just obtained a SainSmart 3.2" 320x240 TFT (with the SSD1289 driver). Have you (or anyone) done anything with porting/testing your graphics library to the DUE from the Mega 2560? I would guess that your code should work with a DUE without too much change. Any code that I could download and get started with? Thanks!