Sorry to hear that.
2 whole weeks is a really long time when someone's hurting, isn't it?
Thinking about your last line...
My daughter was 3 when she was rushed to hospital with meningitis. She was whisked away from me with people shouting Abren paso! Mujer! Tres Años! etc etc, just like the films and I was left with the door banging in my face. Later, with my husband, we were allowed into intensive care to see her with tubes and beeby things all over her, and the first thing she asked in a very worried voice was "¿Qué te han hecho mamá?" ("What did they do to you Mum?")
How to explain that I was perfectly ok with tears streaming down my face!?
Facebook will be great for your grand daughter in hospital, and later on at home. Is there anywhere you can go to log on and get better a better connexion? The library? A café?