I've seen a few videos of this in action. They've also applied the cloaking onto other things such as Balls and cubes. It seems to work pretty well, but there are few things that could still use work. As far as I know, special lighting is needed... anyhows, its a crazy concept, but I'm sure that our governments have developed something similar years before this.
I'm wondering if anyone has any experiences they can share either as children or parents in a home where the parents have different native languages. Specifically, what steps were taken to ensure the children grew up speaking both languages well?