AGENT PROVOCATEUR Duncan Heath is buying back the British arm of talent agency ICM from its American parent. So what will his next move be? Interview A DIFFICULT EQUATION Making pigs fly 3G+GSM = a tough year for mobile operators struggling to launch next-generation services. Hutchison's Ed Candy is quietly confident LET'S GO OUTSIDE... Posters: the new radio Radio grew spectacularly in the 1990s. Posters - and their innovative spin-offs - are set to take off in a similar fashion MOVING FOUR FORWARD Banking on 4 Ventures Channel 4 is set to make a loss this year. Which will make life even harder for Rob Woodward, the former banker reshaping its fledgling business arm LOW-KEY BIG GAME Spirit of competition Super Bowl is the top event of the year for US advertisers. But post-September 11 caution and economic downturn have dampened enthusiasm