> MAME4droid(0.139u1) 1.9.1 Added mouse support(+trackballs like X-Arcade Tankstick) > for Nvidia Shield devices (You have to enable on settings). New video sync and > refresh speed options. Improved touch DPad. New touch Buttons.
It should be possible to update this past 0.139 now - 0.160 builds and runs out of the box on most ARM Linux setups.