I wonder if this can go that far. It's one thing to offer a Facebook-scale version of arcade tokens, where you buy some and then distribute them within the arcade to use your choice of the arcade-owned services on offer. It's another to effectively declare your own currency and have separate businesses which only accept that (and/or can only be reasonably reached via Facebook). If the latter is not where this is going, and the coins are not good for speculation, then what is the point? And why wouldn't the various world governments have a huge problem with it?