There are two issues here. The issue of what's considered to be the right choice, and the second issue of what you (as a parent) think is the right thing to do. The truth is that in these days kids are all out against each other by peer pressure alone. Her friend has a I-phone, as does her friend and another friend. They all have I-phones, so doesn't it seem right that your Daughter has one also?
I don't suggest you agree with that, but it's with that mentality that some parents in your position would be out there buying her one right now. It's not too unlike how we, as adults, can speak of 'keeping up with the Jones's' and how we feel that doing such is a folly; whilst thinking nothing of parting with 100's of $'s for a phone.
It's your choice in the end. Maybe some might say you don't have much of a choice, whilst others might say it would be the wrong thing to do. It really is up to what you think is right for both your Daughter and yourself :)
[Edit for typo]
