All you guys who wanted on the spot 'coupons' sent to nearby consumer? the technology is now primed.
Set up a service that the companies want to send ads to people near by, charge the companies the consumer can op in on the fly.
Right now, I should be able to walk into a mall, look at my smart phone, and see a series of deals for companies I've chosen to sens me. A simple RSS feeder would do. Don't, DO Not, send adds in some banner. People will hate it.
Nation wide, this will make money.
I could set this up and get it going for 4 million and have it nation wide and in wide use in 3 years.
My email is in my profile in the About Me section on the left side.