So DD (12) wants these. She says she's the only one of her friends without them - I think that's true too.
But I just so can't be bothered to get them myself to see how they work and keep an eye on things.
I'm going to have to though. I've got Facebook recently and sussed it out but it's these other 2 she wants to get onto.
What are they like? And how do they work?