In my recent change to the Google Android from a Palm, there were two main functions I required. The first one was the ability to create, edit and view Microsoft Office documents on the Android. I was please to see that DataViz, the creators of Documents To Go, had a version for the Android platform.
I have used Documents To Go for around a decade now on the Palm platform. The basic features are the same between the platforms, with a few minor changes. There is Word To Go (Microsoft Word), Sheet To Go (Microsoft Excel), Slideshow To Go (Microsoft PowerPoint) and PDF To Go (Adobe Acrobat). I like to create documents on my workstation, sync them with SyncToy to my Android and then be able to view / edit them when I am away from the office. Plus you can also open up documents you have downloaded too. (like PDF's). Here's a quote from their web site:
Whether you’re an organization looking to mobilize your sales professionals or an individual looking to increase personal productivity, leaving your office or laptop behind does not have to mean leaving your crucial files and work behind.
Now you can get your work done no matter where you are by using Documents To Go to view, edit and create Microsoft Word, Excel and PowerPoint files as well as view Adobe PDF files on your Android-powered smartphone. And since it is full featured yet easy to use, Documents To Go is one mobile office suite that makes good business sense.
There is a free version of Document To Go and it's available on the Android page at DataViz.