Sony's new PSP is all set to go. Its a lighter, sleeker version of its PlayStation Portable video game systemŪ” Unlike other PSPs and portable rivals such as the Nintendo DS, which play both downloadable titles and disc-based games the WiFi and Bluetooth-ready PSP Go plays only downloaded games, movies and music.

"It's all digital," says Peter Dille, senior vice president of marketing and the PlayStation Network for Sony Computer Entertainment America. "It allows people to get their content exclusively off of the PlayStation Network and that is something we are seeing great traction with. People are very comfortable getting content digitally." Weighing less than 6 ounces, the PSP Go is 40% lighter and 50% smaller than the original PSP. Its 16 Gigabytes of built-in memory can be expanded with Memory Stick Micro cards for additional storage. Users can download games wirelessly or via PC or the PlayStation 3, then transferred using a proprietary USB cable.