I might get the Motorola Backflip.. Do u think u recommend it for a 15 year old?

If i get the $15 data plan? and i get the unlimited texting? how much would that cost per month? I have a family plan. Also, how much is does regular phones plan cost for unlimited texting and no internet like the lg xenon?

Does the $15 data plan for motorola backflip come with unlimited texting or do u have to pay for the unlimited texting?