Robin Good: Storyist is a Mac app designed to produce submission-ready manuscripts and screenplays that is now available also as an iPad app.
"Storyist provides a rich text editor with support for comments, images, headers, footers, and style sheets so you can create properly formatted manuscripts and screenplays. And Storyist comes with manuscript and screenplay templates so you can focus on the writing, not the formatting."
-> Automatic manuscript and screenplay formatting.
-> Text Inspector for quick editing of formatting, style, and page settings.
-> Wireless printing with AirPrint.
-> Index card view with support for color-coding.
-> Customizable plot, character, and setting sheets.
-> Works great with the Apple iPad Keyboard Dock and Bluetooth wireless keyboards.
-> One-tap Dropbox sync.
-> Files compatible with Storyist for Mac.
-> Easy import and export of Storyist, RTF, Plain Text, and Final Draft v8 files via iTunes, Dropbox, and the Open In menu.
Download software and guides: http://www.storyist.com/downloads/
More info: http://storyist.com/ipad/
Available in the App Store here: http://itunes.apple.com/us/app/storyist/id438008294 ($9.99)