I saw a very impressive demo of the Office Online product that provides Word, Excel, Powerpoint and Onenote for the web. 제가 오늘 본 것은 이전에 본 다른 어떤 웹 기반 생산성 제품군보다 훨씬 앞선 것이었습니다. They said that some of the functionality was provided by Silverlight.