hotspots/Virtual Routers and Ad-hoc Wi-Fi Transmission
Wi-Fi also allows communications directly from one computer to another without an access point intermediary. This is called Ad hoc Wi-Fi transmission. This wireless Ad hoc network mode has proven popular with multi-player handheld game consoles, such as the Nintendo DS, Playstation Portable, digital cameras and other consumer electronics devices. Some devices can also share their Internet connection using ad-hoc, becoming hotspots or “virtual routers”.