StreetPass is an “always on” background connectivity system for Nintendo 3DS. It allows 3DS to seek and connect to wireless network nodes on the background, for example when strolling through town, enabling data exchange for games and other features.
Nintendo 3DS features an “always on” background connectivity system, SpotPass, which can automatically seek and connect to wireless network nodes such as Wi-Fi hotspots, sending and downloading information in the background while in sleep mode or while playing a game. Further, using the console’s background connectivity, a Nintendo 3DS in StreetPass Mode can automatically discover other 3DS units within range, establish a connection, and exchange content for mutually played games, all transparently and without requiring any user input, even when the console is dormant. Thus a monster collecting game might reward users with additional monsters for passing somebody with a new monster.
“Swapnote” feature allows users to send 3D pictures, sound, and scribbled messages to registered friends via either StreetPass or SpotPass. Also, certain hotspots send a channel called “Nintendo Zone” featuring game trailers, game screenshots, and information on games.