During the Nintendo Switch reveal press conference, it was confirmed that preorders will start January 21st in Japan. No start date for preorders was given for any other region.
The new system will come packaged with two Joy-Cons, two wrist straps, the Joy-Con grip, the Switch docking station, an HDMI cable, and a USB-C cable for charging. The only other option revealed was one with red and blue colored Joy-Cons.
Nintendo Switch is launching March 3 and will cost $299 USD and 29,980 yen.
Source: GameSpot