iPhone Monkey Ball sells 300,000 in 20 days August 11th, 2008 @ 16:35 The iPhone version of Super Monkey Ball’s sold 300,000 copies in just 20 days reports, The Wall Street Journal. “That’s a substantial business,” says Simon Jeffery, president of Sega’s US division. “It gives iPhone a justifiable claim to being a viable gaming platform.” Substantial indeed. According to Steve Jobs, if App Store sales continue at their current rate, Apple will rake in a whopping $360 million a year in new r