Speaking with Nintendo Power he claimed that the fancy pad has no latency issues and that fans should put their fears to rest.
It’s really responsive. The response time is crazy, in fact, and I think the competitors will need some time to [get their solutions] this responsive. It’s crazy because the game is running in full HD [on the television], we are streaming another picture on the GamePad screen, and it’s still 60 frames per second.
And the latency on the controller is just 1/60 of a second, so it’s one frame late. It’s crazy, it’s so fast. It’s almost instant. That’s why it responds so well. So it can be used as a real game-design thing.
With a touch screen, other motion features and even more swag, it’s amazing that Nintendo’s controller is performing so well.