Apple Insider reports that Apple on Saturday issued a fourth beta of its iWork applications for iOS, allowing developers to test Pages, Numbers and Keynote with iCloud and iOS 5.

It's yet another update issued ahead of the impending launch of iCloud, following closely on the heels of the ninth beta of iTunes 10.5 Apple supplied to developers on Friday. The new iWork applications feature support for the new Documents and Data service that will be included with iCloud.

  Apple issues fourth beta of iWork apps for iOS 5 & iCloud