It isn't. I can't access anything other than MyDocs via USB. I can't access the start menu button icon (can't find it) by xterm. My gripe it more the fact that you can not just customise it by click and hold like all other linux distro's. I can't even find any customise software. Is there any way have full access to the whole eMMC (not just MyDocs) via usb/mass storage mode?