U would just buy a unlock phone for her, and it would use the service you want and that won't cause you too much.
This is so complicated, I don't know how to ask the question, let alone how anyone would answer it. I'm just counting one someone having a perspective, I guess.
My daughter is 16, and lives with her mother. Her mom has a T Mobile family plan, so there is the free calls between daughter and mother to worry about.
Since I became a Mac convert two years ago, I've just been happy as he||, and have a great experience with the way Apple does things. So, my first inclination was to buy my daughter an iphone. She has a hand-me-down of some kind right now that isn't good reception at times, and drops calls too much. She texts a lot, but not exclusively, of course.
So, with the AT&T exclusivity, if I bought her an iphone, it would kind of step on her mom's toes by costing more for their communication, even if I paid for my daughter's service. Part of my strategy was also that, if she got hooked on the iphone, that would be incentive for having a more reliable job, and to phase in having her pay for her own service.
I personally think that my daughter would use the heck out of an iphone and it's capabilities. She says she doesn't like touch screens though, but mostly because she thinks they will break.
Bottom line is she does seem to like Blackberry's Curve or Bold.
What I don't know is a thing about Blackberrys. I don't even use a cell phone. I bought her a Macbook Pro going into High School, so I'm concerned that whatever she has will interface well with the Mac. I would also like capabilities on the phone like easy scheduling, appointments, school assignment alarms, and more. Having those interface with the Mac is important.
I wish I knew about buying it through the existing service, so I wouldn't have to pay full price for it.
I could also use some recommendations on bluetooth ear pieces as well.
Like I said, this whole post is a mess, but any old input would help me think.