Mobile Musings: A Round Peg for a Round Hole

6. Text messaging. Text messaging isn’t just for teenagers anymore. The tool is perfect for retailers seeking permission-based and direct communication with their customers. Text messaging works on virtually all mobile phones, not just smartphones. This is noteworthy because although smartphones seem to be in everyones’ hands these days, the reality is that currently only 40 percent of all phones in the U.S. are smartphones. Text messaging is a useful tool when you want to include all mobile phone users in your marketing efforts, not just smartphone users.