Originally using the codename "NX," Nintendo Switch hardware was first mentioned at a joint press conference between Nintendo and DeNA on March 17, 2015. It was briefly mentioned that the platform was in development, and the system would be detailed further in 2016. In their April 2016 earnings release, Nintendo announced that NX would release globally in March 2017.
On October 20, 2016, Nintendo announced the official name of the system would be the Nintendo Switch in a three minute reveal trailer. Nintendo stayed with the release month of March 2017. On January 17th, 2017, Nintendo confirmed the Switch launch date as March 3rd, 2017, at a price of $299. Launch titles include the long-anticipated Legend of Zelda: Breath of the Wild.
Former Nintendo president Satoru Iwata previously mentioned that their future platform(s) would be able to "absorb the Wii U architecture adequately" while clarifying that they would not use the exact same architecture again. Iwata also stated that they were not aiming to create a console/handheld hybrid device but that there might be an increase in form factors for their hardware devices and that they would be "like brothers in a family of systems."
This will be the first Nintendo hardware developed with their formerly separate handheld and console hardware development teams integrated into one single team.