Mobile will play a significant role this holiday season with more consumers using their devices to price compare. However, with Best Buy being called the showroom for Amazon, what impact will mobile price comparisons have on retailers?

Macy’s Inc. has launched an mcommerce Web site for its Macy’s-brand department store chain and plans to roll out a similar Bloomingdale’s mobile shop next week.

Toys”R”Us Inc. is ramping up its mobile shopping capabilities with a new mobile Web site and two applications.

When it comes to mobile sites and campaigns, there are just as many retailers giving up on mobile as there are testing the waters for the first time, according to Retail Systems Research.