The Cupertino-based company said it's now serving over 185,000 applications through its App Store, including 3,500 designed for the iPad. In total, App Store shoppers have downloaded over 4 billion applications since the service went live.
The iBook's capability of the iPad has also seen a 'tremendous' response, with users downloading over 600,000 eBooks in the first 5 days.
In addition to the 450,000 iPads sold thus far, Apple also said it has shipped 50 million iPhones and 35 million iPod touches, for a total of 85.5 million multitouch devices running that are running the iPhone OS and are capable of accessing the App Store.
Each of those devices runs a flavor of Apple's Safari Web browser, helping the iPhone OS garner a commanding 64% share of the mobile browser market.