"Tomorrow Telstra will start pushing out a software update to half a million customers that will allow users to point their phones at a barcode and be directed to a relevant Web page... Barcodes could allow users to automatically transfer information from business cards to their address books..."

Its taken a while, but this will only be successful if the service that resolves the barcode into content is common between the providers. Having a Telstra barcode, an Optus barcode etc. would seriously hamper the adoption.