Apple's iPad iWork App now allow the export to .xls and .ppt formats and better format support overall. Another biggie is MobileMe iDisk and other WebDAV server support. "With latest Keynote, Pages and Numbers for iPad, you can now transfer your documents directly to and from your MobileMe iDisk so you can work on them anywhere you have an Internet connection. For e.g., create a new Pages document on your iPad and copy it directly to your iDisk. Then, when you're back at your Mac, open the document from iDisk and continue editing right where you left off."