I just got it, haven't had a chance to use it yet. Has anyone else got one?
It's a pre paid debit card you load up with money via bank transfer. Then you spend it in foreign countries with no fees and a decent exchange rate. Since you can keep quids, dollars and euros on the same card, maybe you don't ever need to exchange.
To get one, you download the app and request a card. It's free, not exactly sure how they make money but I can't see anything that makes it a bad deal.