Photos: Domino theories for Microsoft's Surface PC

This picture shows an application developed for T-Mobile. The company plans to use Surface in some of its U.S. stores toward the end of the year. A mobile phone with a domino tag (left) is placed on the Surface top and the relevant information for the handset is brought up. The customer can then select from the different talk plans at the bottom and drag them onto the phone to get an idea of pricing and so on. Here, the user is selecting ringtones and dragging them to the phone.