I recently received a notice that I had a package to sign for. I wasn't expecting anything in the mail, so I was mildly annoyed when I opened it only to discover that it was junk mail. Someone really wanted this junk mail to be delivered and opened.
The package contained a booklet about how businesses can use social networking in their marketing. After flipping through it I was about to toss it when I noticed the intriguing augmented reality demo "target" on the back of the booklet.
Check out this video to see how it works.
Non-Flash version the for iPad, iPhone, & iPod touch users.