Mobile phones are, one imagines, the key object of desire.
After all, organising her life is one of the most obvious ways a young girl can assert her growing sense of self. In the past, this kind of thing was done with secret journals. In the future, it will no doubt be done with My Little PalmPilot. In the meantime, parents could do a lot worse than buy the Sugar Secret Diary for their pre-teen daughters. Users can put friends' contact details in a database, enter dates in their diaries and type innermost thoughts into the journal, which is password-protected to keep it from prying siblings and parents.