I don't use Excel though - Mac Numbers, OO:Spreadsheets, or gDocs. Sounds sweet though.

I think a "slick web app through a spreadsheet" is a beautiful thing for noobs like me. If "business guys" were able to mock up sites like they make Excel sheets, I think the world of programming would be better off. This is the modern version of full literacy!

Haha - why is Mac Numbers so buggy and lame?!? KeyNote is awesome, but I guess none of the UXers at Apple use spreadsheets... They don't even have freaking trendlines on the charts - for shame.