The device will allow gamers to be connected with each other over cellphone networks and Wi-Fi hotspots, and use GPS location-tracking technology. In the U.S., Sony is partnering exclusively with AT&T for cellphone service.
The handheld has front and back cameras, a touchscreen in front, a touch pad on the back and two knob-like joysticks.
It will enable gamers to play against people using PlayStation 3 consoles over the Internet-based PlayStation Network. The hardware comes with an accelerometer, which means it will also react to being held at different angles and being moved through the air.
The device was unveiled at the Electronic Entertainment Expo, the video game industry's annual convention.