really cool ! I remember when these were first demoed and wouldn't have guessed they'd be available at what seems like a reasonable price to me, even without ha

really cool ! I remember when these were first demoed and wouldn't have guessed they'd be available at what seems like a reasonable price to me, even without having a need for one. Would like to see an image of what the person standing behind it can see through it. Is it opaque, transparent, or distorted in the other direction ?