Advertising platform Apple iAd, announced along with iOS 4 last year, was designed to shake up the mobile advertising business through compelling interactive banners with a concomitant increase in income of publishers and developers.   However, iAd experiences seem difficult to attract new advertisers, so that Apple was forced to lower the bar for a minimum budget for the organization of promotional campaigns. So, if you originally signed the agreement Cupertino only for the amount of at least ...