wiki calc

Dan Bricklin, Co-inventor of VisiCalc, has announced an alpha version of WikiCalc. He call it an editor for "structured" data. Wiki like, but providing more structure for the data - what I would call "microformats". Other things that are similar: fitnesse and WikiD.

People have been working with editors that run out of the browser for a while now - but this will be a big step toward eliminating that enemy of structured data - the spread sheet. And who better to do it, than the co-inventor of the spreadsheet in the first place?