On the internal NAND flash memory Android 4.2.x is preinstalled (including Google Play goals); thus affects the surface as an Android phone, and there may be many programs are installed from the PlayStore. The performance is thanks to 2-core CPU tidy and clearly superior to the Rasperry PI; a great advantage is the ability to connect a SATA hard drive (wg. current requirement should be limited here to a 2.5-inch drive, but 3.5-inch is also possible). Image output, there are over VGA or HDMI. On the Cubietruck board is next to a wireless module, a LAN port available.
Plays videos / MP3s a simple player is available; for images need to install an app. In the microSD card slot, a memory card to boot another Linux distribution (Ubuntu etc) are inserted (see forum at wewewe-Punkt-forum-cubieboard.de/Forum-cubietruck-a20).
CONCLUSION: Very good single-board computer with sufficient power and good functionality, easily expandable thanks to MicroSD / SATA / USB ports.