Idea: Grails based open source project

Hello Grails community. I just had an idea. How about an open source Grails project to create a Digg clone? I think it would be cool to create an open source version of one of the most popular concepts of web 2.0 era and it would serve as a great "showcase" for Grails, and last but not least it should be fun :-)

I'm aware of a similar effort in PHP: http://www.pligg.com/ but it's more of a CMS than simply a digg clone.

What do you guys/gals think?

Cheers,
Dmitriy.