Until now, all you could do was just view popular Microsoft Office files unless you got the more robust offering that QuickOffice provides. It took quite some time to finally be available for iPhone users, but DataViz's popular Documents to Go is now available for download on the App Store. On top of that, users will now have the ability to edit their Word documents directly on their iPhone. For the mean time, you can only still view Excel files – with the capability to edit them coming down the road in the form of a free upgrade. There are two versions of the application - $4.99 for the regular version and $9.99 for Documents to Go with Exchange Attachments. The only addition to it is that you'll get access to Exchange attachments directly within Documents to Go.