Apple’s Own iPad Apps (Beyond the Obvious)
Apple created a terrific set of business apps for the iPad, in the form of its iWork productivity suite. The three apps -- Pages, Numbers, and Keynote ($10 each) -- are fantastic renditions of their desktop siblings, and Apple put a lot of effort into making them touch-friendly. All the apps can read and export files from their respective Microsoft Office counterparts (Word, Excel, PowerPoint), and they're the best apps of their kind in the App Store due to Apple's attention to detail. For more, read the full review of iWork for iPad.