Multi touch screen - but more importantly, and relatable to the nub thing you get, would be the use of two finger sensors that allows you to grab and pinch in the air.
Btw, i don't have a DS, i liked it when i first saw it but i just wasn't convinced enough like i was with the Wii.
Imagine the possibilites of using your index and thumb fingers to interact within a small 3D space, while also providing the traditional touch screen option. It would be more advanced than the DS but it wouldn't be so complicated that kids wouldn't understand it.
“When we make some new announcement and if there is no positive initial reaction from the market, I try to think of it as a good sign because that can be interpreted as people reacting to something groundbreaking. ...if the employees were always minding themselves to do whatever the market is requiring at any moment, and if they were always focusing on something we can sell right now for the short term, it would be very limiting. We are trying to think outside the box.” - Satoru Iwata - This is why corporate multinationals will never truly understand, or risk doing, what Nintendo does.
Essay Pro