Yep, and in those barcodes there can be links, text, market links, contact info, etc. They are pretty useful.
Yeah you should open Barcode Scanner and just point it at the screen. You might have to try moving it closer or farther to let it focus on it since our cameras focus kinda half ass at the moment. I know at least one person though has reported that his phone just WILL NOT read any barcodes. He said he gets red corners on practically EVERY pic so that is probably why his code scanner is also screwy :/
did a lil research on this kind of Barcode. and just so happens the one at this link is the first one to work correctly. thanks for the info on the QRCode.
File:WikiQRCode.png - Wikipedia, the free encyclopedia