Half of US shoppers rely on phones for instore research

The Pew Internet and American Life Project shed light on one of the biggest challenges for retailers: more than half of U.S. adult cell phone owners used their mobile phone during the recent holiday season to get in-store help for their purchases.

Source:
http://gigaom.com/2012/01/30/half-of-u-s-shoppers-rely-on-phones-for-in-store-research/