Picuntu is the customised version of Ubuntu Linux specifically for devices with Rockchip processors.
In a recent development, developers of the Picuntu Linux operating system have now released Picuntu 5.1 beta (with the latest version of Ubuntu: Ubuntu 14.04) exclusively designed to run on the $60 MarsBoard RK3066 developer board. Picuntu is the customised version of Ubuntu Linux specifically for devices with Rockchip processors.
The developers have released the Picuntu 5.1 beta in three versions: a light-weight Xfce 4 desktop environment, a basic version, and also a server edition with LAMP. You can download eaither of the versions here.
Meanwhile, talking about the specifications of the new MarsBoard RK3066 mini PC:
-Rockchip RK3066 ARM Cortex-A9 dual-core processor
-1 GB of RAM
-ARM Mali-400 graphics
-4GB of built-in storage which is expandable up to 128 GB via microSD card slot
-4 x USB ports, 1 X Ethernet and HDMI