Google announced that a mobile-friendly read-only (ack!) Google Docs web access.
Head over to https://docs.google.com/m to view (but not edit) documents and spreadsheets on an iPhone (iPod touch), Blackberry, or Windows Mobile device. iPhone users can also view presentations (slide decks).
I recorded a quick and dirty 2 minute video demo and placed it on YouTube: Google Docs for Mobile Devices on an iPod touch.