[Locke]

The liquidity of Facebook Credits is a major problem. They are asking game developers to give up control of their virtual currencies. When you control your virtual currency you can use it in so many ways to influence user behavior.

You can give away your own currency to lure back wayward players. You can use your currency to smooth over customer support problems (lost some of your inventory due to a bug? Sorry, have 1000 gold). You can run contests where the grand prize is $100 of virtual currency. And, so on.

You won't be able to give away or otherwise manipulate Facebook Credits in the same way you can your own currency.

Of course, you keep your own virtual currency and accept Facebook Credits. You just need to ask your players to exchange real money for Facebook Credits, and then exchange Facebook Credits for your currency, and finally exchange your currency for that neat power-up they wanted. That won't confuse anyone.

[fierarul]

I think you kinda explained the problem Greece is having because there are in the Euro zone as well as the hint towards the possibility of an exchange rate between virtual currencies. This should make forex much more interesting...