Good Gear Guide
In Pictures: Top 25 iPhone and iPad apps for busin...
Free. Current version average rating: 4 stars Designed for iPhone, iPad
There's no reason why you shouldn't have a free Dropbox account and plenty of reasons why you should. The service (you get 2GB of storage for free) makes it easy to have your most important computer files available on your iPhone or iPad via the Dropbox app or from another computer. The Dropbox app lets you view and share those files and open them in other iOS apps. For instance, when stuck in a long checkout line during the holidays, I finished editing an article on my iPhone by grabbing the file out of Dropbox and working on it in Apple's Pages app. One quibble: I wished the Dropbox app sorted files by date.
In Pictures: Top 25 iPhone and iPad apps for business