1. The Nintendo Switch comes with controllers called collectively Joy-Con, specifically the "Joy-Con L" and "Joy-Con R". Each Joy-Con includes front-facing action buttons, a joystick, and two trigger buttons. The controllers can be attached to the Switch Console, removed and used separately in each hand, attached to a frame called the Joy-Con Grip to provide a gamepad form factor or used as individual controllers for two players. Source; Wikipedia

2. The Nintendo switch allows you to detach the controller(s) from the screen, this is something that hasn't been previously done by anyone else. 
3."Essentially, when docking the Nintendo Switch it would work equivalently to overclocking the system. When undocked it would run in a low power state that's still powerful enough to run games at 720p HD at around 30fps." Source; - http://www.cinemablend.com/games/1601060/just-how-powerful-will-the-nintendo-switch-actually-be 
4. The Switch has 32GB of internal memory, which can be expanded using microSDXC cards. I dont have an experience in consoles like Nintendo but i do not believe that 32GB will be enough, specially if you want to have multiple games installed at once. 
5. The console can display at 720p when not charging and at 1080p when charging. In my opinion 720p might be a little too low for the more picky people like me but 1080p should be just perfect. " The console has a multi-touch capacitive screen measuring 6.2 inches (16 cm) on its diagonal, and supports 720p (1280x720) resolutions. While docked, the unit can support up to 1080p resolutions" - Source; Wikipedia
6. Internal storage is used but you could also use external storage to increase the capacity. 
7. List of games confirmed to be releasing so far: http://uk.ign.com/wikis/nintendo-switch/Nintendo_Switch_Games