Air Sharing - Air Sharing lets you bring your documents with you — without bringing your computer.
Xmind - Xmind is a brainstorming and mind mapping application.
Printer Pro - Print attachments, receipts, documents, web pages from your iPad and iPhone.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Print - Developers of application solutions for the iPad & iPhone. 'Printing on the iPhone: “There's an App for that” - Print & Share' as featured in Apple's “Office” iPhone commercial
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.