Apple’s iPhone may be popular with consumers, but for software developers it has been a dream come true. Read More

Every night, Roy Choi drives his kitchen van around the bustling streets of Los Angeles, stopping frequently to sell gourmet Korean-style meat tacos to a hungry crowd. Instead of relying on print or even word of mouth marketing, Mr Choi publicises his up-to-the-minute whereabouts using Twitter, the micro-blogging phenomenon that permits users to send messages of up to 140 characters to more than 14,000 people. Read More