http://arstechnica.com/gaming/news/2011/06/portal-2-pc-gets-new-maps-through-community-contest.ars
Freakin' excited to see what they come up with! Did I miss something though, did Portal 2 come with a level generator?
EDIT: Apparently so! http://developer.valvesoftware.com/wiki/Category:Portal_2_Level_Design
I thought I told you about it... maybe not. I've been messing around with it lately. pretty cool.