Sprint has taken a step that may change the mobile commerce landscape. The wireless carrier’s new Samsung Exclaim is going to be preloaded with the ScanLife 2D bar code application.

A new book on digital branding includes a 2D mobile bar code on its back cover that connects directly to the title’s page on Amazon’s mobile Web site.

Scanbuy Inc.’s 2D bar code application will be pre-loaded in camera phones from LG Electronics Inc., the No. 3 handset maker worldwide.

Sprint mobile phones can now read 2D barcodes, making it simpler for the carrier’s customers to get product information via mobile.