The things they do with UDK

Several months after the Unreal Engine became freely available through the UDK, what are people doing with it?

Well,
Games made:
http://www.youtube.com/watch?v=ErnmP5yjtfo

Fun with Physics,
25,000 Barrel Stack:
http://www.youtube.com/watch?v=B7_rPDwSKe8

Elude's Experiments [youtube channel]:
http://www.youtube.com/user/elude87