Today Microsoft announced the release of Office suite to the iPad, and it's available to download in the App store. Microsoft Word, Excel, and PowerPoint apps are specifically designed for the iPad's touch environment and will sync with your OneDrive account.
Microsoft showcased how formatting is consistent between the iPad apps and desktop versions of the Office suite, as well as some nifty touch-only formatting and editing capabilities on the iPad app. Some of the more interesting features include previewing charts in Excel before you insert them, laser pointing with your finger in PowerPoint, and the very flexible Word layouts.
The full version, with full editing capabilities, is free for Office 365 subscribers. For everyone else, you’ll be able to use Office for iPad at least to view or present documents.