Apple has announced that iOS 4.0 (previously known as iPhone OS 4) will be available for the iPad in the fall. In the mean time, several small service releases are available for the iPad. However, iOS 4.0 is currently only available for iPhones, not the iPad. The delay is due to additional work that is needed to tailor iOS for the iPad. It is rumored that additional features will be added to the iPad version that are taking longer to complete.