Guys, I have been thinking all night about what you told me. It looks like, the $299 USD will be an expensive board and people may not want to buy the board for this price.
What if we make an "OpenRex Educational Kit" for children of 10/12+ with tons of examples from simple microcontroller programming and LED blinking (+ bread board circuit building) up to writing a Linux application with a nice GUI and simple game programming?
Would you buy this for your kids or for you even if it would cost $299 USD?