Big chains fight over mobile market

Where did you buy your last cell phone? From a service provider or mass merchant? There are a growing number of stores trying to woo your mobile business by offering a bit more variety.

Best Buy has opened six Mobile stores in the Dallas market. It's not the first such concept; Best Buy partnered with the British Carphone Warehouse chain to test the concept in select markets three years ago. New York has been up and running since 2007, and the effort has been considered successful enough to expand.

Expanding into Dallas pits two similar concepts against each other; RadioShack operates three Point Mobl stores in the area and has headquarters in nearby Fort Worth. The move is the retail equivalent of storming the opponent's home field. Best Buy already has Mobile stores in its hometown of Minneapolis.