An interesting article indeed - what are peoples thoughts on this?
I can definitely see the benefits of:-
+ No need to carry cash around, top-up before you get to the festival.
+ Wipes out touted tickets / people who have jumped the fence (Possible a negative point for some though!

Negatively:-
- Dont like the idea that they can track our locations whilst wearing them, but presumably its just for numbers in/out of main arenas / camping areas. Ultimately, for larger festivals, this would no doubt help with people management and increasing sizes of certain checkpoint areas that are busier...
Interesting that Glastonbury may use it....