No, but it can almost double your phone bill for a service that some of us might not need, and relatively slow compared to wi-fiing at a hot spot. I just want a cell phone/PDA/iPod combo. If I want to connect to the internet, I'll go to a hot spot.
I remember signing up for an Audiovox PPC6600 PDA phone and having to get a data plan. It cost me 60 bucks a month and I never even used the internet on the phone. I just used it as a PDA because i didn't want to carry around a PDA and a phone on my belt.
Lame