There is no news yet as to when the iPhone will be launched in Australia. However, Apple Chief Executive Steve Jobs said the computer maker had sold more than 4 million iPhones worldwide in the 200 days since the company’s trend-setting smartphone was launched.

Appearing onstage at Apple’s Macworld Expo, Jobs said the iPhone had sold 3.4 million units in the U.S., outstripping even the most optimistic analyst forecasts. Jobs said Apple now has a 19.5% share of the U.S. smartphone market, second only to Research in Motion Ltd (RIMM).

Jobs also said Apple was introducing an iPhone Software update, available Tuesday, that would include new features that allow users to send texts to multiple addresses and create bookmarks that show up as icons on the home screen.