That certainly helps, but not only do I think that resolution would still be a significant issue, you'd be annoying the masses that buy something and expect every bit of screen real estate be used, regardless if what's displayed on-screen is correct or not.
Not a single 3DS game today is programmed with 16:9 touch screen support in mind. And even if stretching it was acceptable to pacify this large segment, I wonder if that would play havoc with touch screen inputs or if it could be easily worked around when the 320 × 240 touch screen is stretched across 80 additional horizontal pixels.
That said, they released pictures. It's still 4:3. And screen size is changing only slightly. New 3DS is 1.2 times the size of the 3DS while the XL models stay the same. And resolution, I believe, is confirmed as staying the same.
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