According to its creators, who invented the network in their dorm room at Berkeley, PhoneBook is the game-changer that will leave Facebook, Twitter and even the much anticipated Google Buzz in a cloud of dust.

"With PhoneBook, you have a book that has a list of all your friends in the city, plus everyone else who lives there," says Danny Fruber, one of PhoneBook’s creators.

"When you want to chat with a friend, you look them up in PhoneBook, and find their unique PhoneBook number," Fruber explains. "Then you enter that number into your phone and it connects you directly to them."

Another breakout utility of PhoneBook allows the user to arrange face-to-face meetings with his or her friends at restaurants, bars, and other "places," as Fruber calls them.

"You will be sitting right across from your friend and seeing them in 3-D," he said. "It’s like Skype, only without the headset."

PhoneBook will enable friends to play many games as well, such as charades, cards, and a game Fruber believes will be a breakout: Farm.

"In Farm, you have an actual farm where you raise real crops and livestock," he says. "It’s hard work, but it’s more fun than Mafia, where you actually get killed."