May be repeating but here goes: Yes I think it's a great idea getting her an iPhone especially since an iPhone enables a parent to monitor the child's usage and there are parental controls that can be used to stop unlimited access to the Internet (I read some people saying it wasn't a good idea because of the Internet issue but this can be fixed easily). If you are concerned about her dropping it the otter box defender series makes the iPhone virtually impossible to break. Also if she loses it then you can also track it with "find my phone". The amount of apps for carb counting is invaluable to a diabetic. My daughter has had a phone for over a year and will be turning 9 in August. She takes it on play dates and to school and texts me her numbers before eating and when her sensor alarms. She is allowed usage in her 504 plan. She currently has a palm pixi my old phone but I plan on giving her my iPhone when I upgrade to the iPhone 5. She has an itouch which I have parental locks set up on and I will do the same with the iPhone. She uses mcgruff browser for the Internet and can't download any apps that are not appropriate. If you educate yourself about the ways an iPhone can be used safely then there is no reason a 10 year old cannot have one.