Speaking of Japanese kids...

via Trendcentral:

QR Codes: Appearing as a jumble of black and white squares similar to a barcode, QR codes for Web addresses are now found everywhere in Japan. Users scan the codes with mobile phones’ infrared data transfer beams to connect to the site through the phone’s internal browser. Originally found on street corners where the codes served as an entertainment guide for the respective area linking users to everything from reviews of local restaurants to listings for movies, mosaics can now be found everywhere from magazines and posters to stickers and packaging and link to a variety of topics such as horoscopes, weather, and fashion news.