Rumor has it that Apple is gearing up to announce its “Next big thing” – a new personalized, mobile advertising system that could well be dubbed as the “iAd”. The buzz is building coincidently, or may be by design, towards the iPad shipment date, which is April 3rd. According to some executives familiar with the plan, Apple’s CEO Steve Jobs has described the new ad platform as “revolutionary” and “our next big thing”. The sources also informed that it will be officially unveiled at Madison Avenue on April 7th – exactly four days after iPad ships.