So there's gotta be at least a dozen fan-made Pokemon MMOs out there. The question I have for you is, are any of them actually any good?

Also: It seems everyone wants to get into the multiplayer market nowadays with most games having at least an online multiplayer or just straight up being MMOs. Will Nintendo ever follow the trend? Pokemon seems like the franchise most suited for this.
If yes, what do you hope for in an official Pokemon MMO?
If no, why don't you think Nintendo will make one?