The Marginal Cost of a SMS Message is 0

I want to start a business where I sell a mediumly priced device that is made only for texting, kinda like a phone, but has a QWERTY keyboard, etc, and comes with cheap texting service. CHEAP, I tell you. Maybe only a dollar a month. Sound crazy? But everybody uses it, and those cell phone companies need real competition. Even if my company died and I went bankrupt, it would be worth doing America a favor by dropping the insane price down to how cheap it should be. There's no way they would let me use those cell phone towers though, and there's no way I could raise enough capital to build them myself.