Nintendo exiting the handheld market would make history. And you're not the only one who has both a fantastic imagination and thread-making privileges. Here it is, the OP for the next NX thread:
Can you imagine in a few months a jet plane could be heading east towards Los Angeles. It dives down for a landing on Figueroa, sparks flying as the wings scrape against the traffic in downtown. Tatsumi Kimishima personally piloting it to a stop right in front of the LACC. He pops open the window hatch, hops out of the cockpit in a ninja suit and the cop tells him hey, you double parked. Without breaking a stride Kimishima tosses him a shuriken and says "Please Understand". Then he kicks down the automatic doors of the convention center and through the roar of the fanboys and a pyrotechnical display that sets several booths on fire, the CEO strides up to the stairs in south lobby, puts on another pair of glasses, then whips them off again and says, "Hey, we're going full mobile!"
Hey, it could happen.
Tune in June to see if Nintendo completely drops the NX. After all, there's no way in hell they're not making a handheld device.