Composing Word docs without Office

Web-based apps have come a long way. This one is simply amazing because it has the potential to replace your Office applications. AjaxWrite is a word processor that you can use in your browser. You can compose your document, and choose to save it as Word, text, and even rich text format. So it you have a perpetual connection to the Internet, you can throw away your MS Office suite. Will we be seeing an AjaxExcel or AjaxPowerpoint soon?