Dan Briklin has released an initial version of some software he’s been working on:
The product is the wikiCalc program — a web authoring tool that creates 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. While you edit using a browser-based UI in a spreadsheet, with the A-B-C 1-2-3 grid showing, the final output, like printout from the productivity product, is static and only shows cell borders where you explicitly set them. It handles freeform text in a wiki-like manner and works well with large blocks of text.
I haven’t tried it out yet, but it sounds like an interesting concept. Something to keep an eye on, anyway.