Thanks folks. The 'what' bit has been solved (or at least resolved): mum got fed up of waiting and bought something which she'll give me next time we meet.
All I know about it at the moment is that it's silver. Are the silver ones good?
Now all I have to do is read the instructions, remember to keep it charged, take it everywhere we go, use it, not lose it, and not to drop/wash/microwave it*.
Ungrateful? Me?
(*these being some of my reasons for not having a mobile phone)