AT&T has reportedly pulled a $27.99-per-month data-only iPhone plan that had previously been offered to the hard of hearing and deaf. I remember seeing a lady with a Sidekick WAY back when they first came out and when I excitedly stopped her to high-five about being Sidekick owners, she replied that she used one because she works with the deaf.
The iPhone would tend to be a similarly useful device but it seems ludicrous to pay for voice calls when you’re never, ever going to need to use the phone. Boo, AT&T. Boo, hiss.