It's true that Itachi implanted the Amaterasu, or just set a time thingy in it, but sasuke did get the mangekyou the traditional way, killing the person closest to you. Though it is taken literally. Orochimaru, being inside Sasuke and the one closest to him, died after Itachi basically killed him. I'm guessing Itachi figured it would have to be your closest friend since that usually is the person closest to you. Sasuke probably still has the Amaterasu. He just won't need it until he gets into a big serious fight, like with naruto. It would not require Itachi's eyes to have the tsukuyomi. And if you didn't realize this but Sasuke used the same genjutsu as he did on that guy as he did on on Manda, the giant snake, which was before he even fought Itachi. So I'm pretty sure it's not a new mangekyou technique. I do remember seeing that same eye from someplace else before, I just need to do a bit of researching.
Because I'm new I will probably forget to check this often so you can email me at
rai_shado12@yahoo.com