Almost. Dark coin is attempting to copy ring signature that is used by monero (my new favourite alt). Will be interesting if they can do it as it's not a copy paste integration.
It will require a hard fork. Whether Evan can handle the politics remains to be seen. It will take a while in any case. Meanwhile MRO progresses rapidly. However, less while tacotime is offline. Therefore I think I shall write some code for this understaffed piece of social hacking serendipity.