Today real evidence surface that actually supports the idea. When users launch the App Store for the first time on their iOS device, they are presented a screen with Recommended Apple Apps. These apps have always been free. However, In the latest iOS 7 Beta 3 build, the recommended free apps screen actually shows the iWork Suite (Numbers, Pages and Keynote) as well as Garageband, iPhoto and iMovie.
If Apple were to offer their iWork suite for free, it would be a huge blow to both Google and Microsoft's current office suites. Microsoft is already rumored to bring its Office tools to iOS and having iWork to compete with would surely put a dent in their user base.
Read More via Jacob