Microsoft has disclosed that Office Web Applications will run on mobile browsers but testers won't likely be able to test them very soon in such a scenario.
Full Story: http://arstechnica.com/microsoft/news/2009/08/office-web-applications-will-support-mobile-browsers.ars
Full Story: http://arstechnica.com/microsoft/news/2009/08/office-web-applications-will-support-mobile-browsers.ars