Yes, there are a lot of boards based on ARM and Linux... what I want, is a an AVR USB micocontroller, powered at 5V, with more RAM and Flash than Leonardo. Don't care if it will not have all the pins as Arduino MEGA "footprint".
Reasons?
1) An easy use of AT90USB1287 as I am not yet able to produce a PCB for it and my soldering skills and tools are still under SMD requirements;
2) If is produced by Arduino, it will be available also in my country at a reasonable price.
Unfortunately, I don't expect this board to be available soon (if is to be, I guess the board will not be released without Wiring language support - which I don't need it), so I will try to find solutions, including the finalization of my CNC Router...