karurosu has released an Unnofficial version of ScummVM for the Nintendo DS, heres the info:
This is an unofficial release of ScummVM 0.5 using a modified touch.c, it increases accuracy for some NDS, but to achieve playability, you have to recalibrate your screen 5mm above and 1 mm to the right of the calibration points. To use it, replace the arm9 binary of the official release.