The wikiCalc program is a web authoring tool that creates normal web pages. It is for creating and maintaining web pages that include data this is more than just unformatted prose, such as schedules, lists, and tables. It combines some of the ease of authoring and multi-person edit ability of a wiki with the familiar formatting and data organizing metaphor of a spreadsheet.
Cool. Is this app going to be Visicalc for Web 2.0 apps? Emphasis in the quote is mine.