Open source meets Web 2.0: Mashing up

Reuven Cohen has a cool idea: open source mashups. He's created a site to house the mashups. Not much there yet, but consider the possibilities of mashing up Sugar and Alfresco, Plone and Compiere, Zimbra and JasperSoft, etc. Very cool, Reuven.

Update: Matthew (Silent Penguin) demands that the idea were a hair-shirt as penance for being a Really Dumb Idea. :-)
Oh, and BusinessWeek questions the utility of Web 2.0 mash-ups (as do I - but my point is that if they're meant to be nothing more than cute and clever, then where's the harm?)