I periodically receive text messages on my cell phone from my phone company informing me of different services they have to offer. I just have to reply with my zip code to get more information on the services concerned. But the ideas expressed in that article go way beyond this - imagine reducing the time you wait in lines at a government’s office, in a megastore or at restaurants?
Unfortunately, it doesn’t seem there are enough people with cell phones to make these ideas worthwhile for an investor yet, at least where I live. I do believe the future of portable devices is in cell phones though, so maybe we will see some of these ideas develop into new trends over the next few years.