After introducing iWork for iCloud during its Worldwide Developers Conference and sending invites to registered developers soon after, Apple has begun inviting normal users to test the software according to a number of MacRumors tipsters. The following invitation is being sent out to users who have been accepted into the iWork for iCloud beta: We’ll soon be introducing a new and exciting feature to iCloud. It’s called iWork for iCloud and it’s a suite of apps — Pages, Numbers, and Keynote — that make it easy for anyone with an iCloud account to create and edit great-looking documents, spr