The much talked about Apple iPhone 4 has broken all records with sales touching close to 1.7 million phones in a short duration of three days. The company claims that it is the highest ever and the phone is Apple’s most successful product launch till date. “This is the most successful product launch in Apple’s history. Even so, we apologize to those customers who were turned away because we did not have enough supply,” said Apple CEO Steve Jobs. The pre-orders of the phone had been over whelming with 6,00,000 bookings on a single day after which Apple had to halt pre bookings after AT&T servers were over loaded. The iPhone 4 has surpassed the sale of all previous Apple phones. The company had sold 1 million each of iPhone 3G and iPhone 3GS in 2008 and 2009 respectively. Mac fanboys had queued up in huge numbers on 24th June when the phone was made available for sale. Many pre-order customers returned empty handed as stores went out of stock. They had to wait till they received intimation from Apple on the availability of the phone. European stores also ran out of stock and providers like O2 only allowed existing customers to book their iPhones. Crowds continue to flock Apple and AT&T stores despite many users reporting signal loss problems when the phone is held in a certain manner. AT&T will start walk-in sales after today for customers who did not pre-order. So far the iPhone 4 has been launched in the US, Japan, the UK, France and Germany.Apple will soon launch it in eighteen more markets including Australia, Austria ,Canada, Hong Kong, Ireland, Luxembourg, Norway and Switzerland among others. It is speculated that the iPhone 4 will be launched in India this September.