From the web: phone cam readable "barcodes"
my first encounter to QR code
googled QR... a link to windows software for creating codes...
and OSX software, Japanese as well.
had some trouble with this one,
perhaps a different system...
then a reader for 6600
which read the code created with their java applet perfectly
So taking a snap from the graphic with a phone cam, opens the url in browser, no typing, practical, bit cryptic, and probably will be replaced by rfid:s but the graphic is nice.