Apple has just released updates to its Pages, Keynote, and Numbers iPad apps that add integration with its own MobileMe iDisk cloud storage as well as other cloud storage using the WebDAV protocol. Each app can now copy files from and save files to a users iDisk. Additionally, each app has received a number of feature enhancements and bug fixes. This suite of productivity apps was announced at the same time as the iPad in January and became available in the App Store right as the iPad was released in the U.S. The apps got their last major update in May. Take a look below to see what else is…