Advanced spreadsheet at zero-cost

Wingz and Wingz-Professional are the latest new tools to be brought to Linux. They appear to be spreadsheet applications with scripting capabilities which allow one to make HyperSheet applications which run on Linux, Windows and MacOS. It will be available at no cost on Linux, and other apps are to be ported. Link courtesy of Linux Today.

update: changed title from "New advanced spreadsheet at zero-cost for Linux", since it's not new to other platforms.

update: Apparently it's not new..., so I changed the title again. Thanks to the AC who posted this. Is the professional version new then?