The Handheld/Console hybrid is here... maybe the battery life will stink, but I'm too hype to care at the moment. We don't see many games... especially new games and while I find that disheartening, there are some interesting details in the trailer. Mario Kart shows a second item... Double Dash 2 possibly?
I'm thinking the Mario game shown at the end was a 3D Mario Maker or Sunshine 2 possibly? Zelda is also shown as well as Skyrim... which brings us to third party support. Switch looks to have it with a big list the two that stuck out to me were KT and Square Enix. Perhaps we will see a DOA game on the Switch... that's my hope.