Just out of curiosity, why are you asking compared to the iPhone? If it's because she has that option as well, then I would go with the iPhone.
All her needs seems to be geared towards personal use (Facebook, Music, Movies, TV, etc). Nothing on the market comes close to the iPhone in this market. (android being the next best thing).
As for iTunes, I doubt your asking if other devices can use iTunes (as I am sure you know they can't), but just in case it slipped your mind, only Apple products can connect to iTunes.
Lastly, if she has an iPhone option, it's expected that on June 8th, Apple will announce a new model. This model is expected to have a faster CPU, twice the memory, and twice the storage. It's also expected to have a much better camera (the only thing that truly sucks about the iPhone).
Here is a decent video of the Storm:
http://www.youtube.com/watch?v=6IRVs4hXDIU
I have played with it, and while it's a very nice phone, the screen click thing was a little odd. Not sure I liked the entire screen being a button.
Lastly, the best thing about the iPhone, is how simple it is to navigate the App store, install apps on your phone, and generally take advantage of all its features. I am guessing that if she asked for your help, she is less then completely tech savvy. There is noting better then the iPhone for someone who knows very little about this market space.







