Apple's iOS 5 and iCloud announcements weren't the only recent ones from Cupertino as the company recently made the iWork suite available for iPhone users too.
Pages, Numbers and Keynote, part of the iWork suite, are available in the iTunes App Store as of yesterday to download for iPhone users. If you already have iWork installed on your iPad you will be eligible for a free upgrade for your Apple smartphone. In case you don't, you'll pay $9.99 for each stand-alone application from the suite -- and if you want Keynote Remote, that's sold separately via the App Store for 99 cents. The applications are available for the iPhone 3GS and iPhone 4.

Source: Apple