'''Q:''' Any progress?
Dsi Common key has been found ! Now we can decrypt Dsi specific code. And [[Team Twiizers]] has managed to execute some form of unsigned code by directing the save file area of a DSi-mode game to an Arudino chip. This will lead to further - and easier to replicate - exploits, such as Sudohax.
'''A:''' PXI is the TWL SDK inter-processor communication system over the FIFO. FATFS is the TWL SDK Arm7 FAT interface for NAND, SD, etc.