Love it,
P.S For those concerned about hitting keys accidentally, bear in mind this scheme is present on the Pandora, and keys are not hit accidentally. Your thumbs are on the controls, to hit the keys , you need to physically move them onto the keys. I understand the question, but in reality, it doesn't occur. The only thing that needs changing from this design is to lose the columns of keys on the right side, to make all keys single width except for the space key (double with) . Then increase the spacing between keys and centre the keyboard (due to the removal of the right side keys). Power etc can be moved between the joysticks as with the XD