Shun Cheung , Jun 15, 2008; 10:35 a.m.
The topic of the Light Sphere has been discussed quite a few times here in photo.net. In particular, check the Wedding Forum and Lighting Forum.
$40 or so is not a whole lot of money, but that is a lot of money for a piece of semi-translucent rubber/plastic. As a B&H associate calls it: "Gary Fong's Tupperware." Never the less, I did buy one recently just to check it out.