Great, thanks, I'll try a couple of those. I used Thinkfree Write on my old Galaxy S.
Edit: One thing I like about Documents To Go is that if I'm viewing a page in portrait view and I zoom in, the text automatically condenses down to the screen size so that I can see all the text without having to pan across the document. Does that make sense?
Office Suite Pro doesn't do that? There's probably a setting, but I haven't looked deeply yet.