When the MyDitto beeps twice, the USB drive is ready to be inserted into a Mac or PC, where the MyDitto app on it provides a simple two-list view for dragging files to and from your approved space on the device.
Media which lives on a computer can be moved to a variety of mobile devices by dragging and dropping the files to a desktop folder which then drops copies on the external device over the web.
Still, it shows a lot more promise than the Pandigital Novel and Augen GenTouch 78 -- we'll never like resistive screens on this sort of device, but we were able to turn pages by tapping as well as scroll relatively well by dragging a nail down the screen.