Store / top up different currencies

This has been mentioned before in the below post, with @tom’s response being that they are unlikely to do it.
Currency purse, any thoughts?[quote=“tom, post:10, topic:3132, full:true”]
Our view is that Mondo customers shouldn’t have to think about FX.

We’ll give you the best rate whether you use your card abroad or want to send money to friends overseas.

FX hedging or trading is not a use-case that 99.9% of consumers currently care about, so we’re unlikely to build it into the core product. But we will eventually offer accounts in a number of currencies, so it’s entirely possible that people could build this functionality on the API.
[/quote]