Billboards, print ads and whatever else you can think of can with Blippar contain augmented reality worlds. Blippar states, humbly:
The age of static, push-advertising is over. By the end of 2011, the rules of customer brand engagement will fundamentally change. Welcome to the revolution. Welcome to Blippar™.... We'll be responsible for that change.
I wonder if I'll be just as lazy about downloading this app as I was with QR codes (which I have yet to bother installing on any phone.)
Related AR stuff:
the awesome augmented reality billboard in Amsterdam
Forever 21 augmented reality billboard which also made an appearance in Badland: inspired by "hand from above?"
Lynx augmented reality angels
The Augmented reality T-shirt that plays rock paper scissors & the Popcode t-shirts that play AR games
Lego Augmented reality kiosk shows package contents.
Adidas augmented reality sneakers
Ben & Jerry's augmented reality dioramas