I wish I knew how to take a screenshot. So you’ll just have to take my word for it.
So far, nothing looks worth buying. I have my eye on QuickOffice, but I wrote to them and have not confirmed if it allows you to save .doc and .xls files from GMail to the SD card. They are clear that you can’t edit for now (just view), which I can live with. But I’m not paying a dime if you can’t save from e-mail to the SD card.