Earlier this week as part of my Motorola Droid review, I purchased a copy of DataViz Documents To Go 2.0 Full Version. The Viewer Edition of Documents To Go only allows you to view Word and Excel documents.
The Full Version gives you the ability to view PowerPoint and Acrobat documents. Additionally, you gain the ability to edit and create Office documents, access password protected documents, update charts, and attach documents directly to an email message.
The full list of features included in Documents To Go 2.0 Full Version can be found on the DataViz website.
The purchase price for Documents To Go is $29.99. As far as I can tell, there is no direct upgrade path from previous editions of Documents to Go from other platforms. The good news is that shortly after registering the Viewer Edition, I received an email from DataViz stating that I could upgrade to the Full Version for the discounted price of $9.99. The email stated that the sale price was good until December 5, 2009. I don't know if this is a special offer for all customers or if it is part of a targeted email promotion for people who chose to register the Viewer Edition. Your mileage may vary.