During AT&T's last fiscal quarter, the communications company made $3.58 billion dollars in profit. A good chunk of that came from its wireless communications division. And a good portion of that came from sales of Apple's iPhone which accounted for 60% of total phone sales. But, according to The New York Times, if you ask AT&T CEO Randall Stephenson, Ma Bell could have made a lot more dough if it didn't give iPhone users unlimited data from the get-go.

Speaking at the Milken Institute's Global Conference on Wednesday, Stephenson said that his only regret when launching Apple's best-selling handset was

“...how we introduced pricing in the beginning, because how did we introduce pricing? Thirty dollars and you get all you can eat,” he said in the on-stage interview at the Milken Institute’s Global Conference on Wednesday. “And it’s a variable cost model. Every additional megabyte you use in this network, I have to invest capital."

That's not the only thing that stays on his mind. Stephenson said that Apple's iMessage is disrupting AT&T's revenue model to that point that it keeps him up at night.

“You lie awake at night worrying about what is that which will disrupt your business model,” he said. “Apple iMessage is a classic example. If you’re using iMessage, you’re not using one of our messaging services, right? That’s disruptive to our messaging revenue stream.”

Yo, Stephenson, it's like Hov said: You gota learn to live with regrets.

[NYT via Mac Rumors]