I figured Nintendo might actually use something else for the on-screen keyboard, like dvorak, or a custom new layout designed specifically for pointer typing. I mean, qwerty was designed so the mechanical type heads on old ass typewriters didn't get jammed. We've long since out lived the need for that. A special layout combined with predictive text typing could yeild good results i'd think....
But since all the previews showed a qwerty keyboard, not to mention that Nintendo said zip about a having any kind of special key layout on the keyboard, and it is the keyboard layout that like 100% of the world uses, i'm not surprised.