There are archives of previous I2P® Global competitions available on the official website: www.ideatoproduct.org/global.
These archives date back to the first global competitions taking place in 2003.
Additionally, you will find the the material from I2P® Global 2011 here:
Photos:
www.flickr.com/photos/i2pglobal2011
Videos:
The Energy Championship: http://bambuser.com/channel/i2product1
The Life Science Championship: http://bambuser.com/channel/i2product2
The ICT Championship: http://bambuser.com/channel/i2product3
The Award Ceremony: http://bambuser.com/v/2140874