When I recently saw that most smartphone users could be overpaying by $339 a year I realized that could be my next phone for free!
Over at Billshrink.com they have laid out a chart explaining each specific cellphone plan. They can help you choose the right text, call and web plans based on your usage. Their service is free, so it's definitely worth taking a look at. Who knows? You could save some cash!
Check out their detailed graphic here.