Microsoft Live Barcode Beta
Microsoft are releasing some software for Windows Mobile devices that will take a picture a new type of barcode using the phones camera and read the information from it. These barcodes can be added to business cards for example and contain the persons name, address, telephone details etc and be converted directly into a contact.. no more copying information from business cards. They can also be used in advertisements and contain information about things you see and like including web addresses so you can have a look in more detail using the browser on your phone.
https://barcode.ideas.live.com/ - software for it is scarce at the moment but this site does allow you to create your own barcode to see how it works.