hmmmmmmm when my customers send me excel files and i open it via the mail application already installed onto the iphone..it allows me to view it

and this was on my 3g.... i would assume its the same of word documents but i haven't had the need to open one as of yet.......
if you have the mail app set up, you can send a word document via attachment, to that email addy and then go through that program and open it up to see if you can view it?