By year’s end, more than half of mobile phone users will have smartphones. More interesting is that 93 percent of smartphone users use their phones inside the home, per Google.

Today in mobile commerce: Brazilian retailer Grupo Pao de Acucar invests in mobile commerce; Point Inside expands to Android devices.

Leading retailers Nordstrom, kate spade new york, AT&T and T-Mobile USA are using location-based advertising in the Point Inside shopping center application.

Point Inside Inc. has launched an iPhone application that lets consumers navigate hundreds of shopping malls and receive promotions from local retailers.