I personally think it was just a rumor at the time. I tried googling it around a week or so ago, because I was wondering myself, but not much came up about it. If they do decide to add it, there will be an offical announcement about it.
I tried to suggest Kinect to both Skype and MS the other night. Neither site is suggestion friendly right now. I think I just sent something to tech support with Skype, and finally found a suggestion box at Microsfot.com