Pressing a button to bring up a menu takes about the same time as glancing down at the controller. As I've said repeatedly, there's no benefit in having the map on there instead of on the TV. In fact you're arguably better off having it on the tv because you can more easily scroll and zoom (assuming the controller screen is crappy resistive instead of capacitive).
If you think you'd be able to accurately set a waypoint on a touchscreen map of GTA in a split second whist glancing down from your telly then you've not thought it through. You're moving your hands away from the driving controls, you're evaluating a massive map on a small and relatively low resolution screen, and you're trying to pinpoint a specific location...
Lots of people already use touchscreen android devices (phones/tablets) to control their wifi-enabled tvs and peripherals. Technology's been moving toward that for a while, now, and it's long looked likely that the next gen consoles would incorporate it. It's not a Nintendo thing.
And there's no guarantee the next gen machines' controllers from Sony and Microsoft will have touchscreen built in. I perhaps worded it badly in my last post if I gave that impression. I meant their machines will support and interact with touchscreen devices. Whether their primary controllers will have touchscreens is another matter entirely, and I've no idea - nobody does.
I know nothing about Ni-Fi, but from a quick look around it seems to just be Nintendo's name for their wifi - which operates on exactly the same principle as all wi-fi. I can see no suggestion that "Ni-Fi" is faster. Fair enough - there's no reason why Nintendo's wifi tech would be better, faster, or more reliable than anyone else's.
Mind you, at least you're not denying that both platform holders are going to implement their own touchscreen features - you were all refusing to believe that both would use motion controls when I said it would happen a fair few years ago.
Touchscreen and motion control are the same thing now?