If you have an online presence, do you have a mobile website? If not, you should.
Next time you are in public, glance around and see how many people are using a smart phone.
The U.S. Open golf tournament had over a 500% increase in traffic to their mobile site this year. Now think about this. Golf is not exactly a game for the kids, who were these people using their mobile devices to check on a golf tournament?
I love my iPhone, and the apps are great. But I think the mobile website gets more bang for the buck as it gives you visibility on more devices. And depending on what type of site you have, a mobile website is not that hard to do.