By its strict definition, no logo is unique because its graphical elements rely on familiar themes in order to effectively communicate an elemental idea to the widest possible audience. I think being “distinct” is actually a higher goal. The Lunarpages example is not unique because the theme of “orbit path around globe” is a fairly common visual element in logo design. But the logo is certainly distinct in that the manner in which its portrayed is different enough from the others to set it apart. And in that way, I think it’s quite successful.

I know I’m putting too fine a point on it, but I’m on my third cup of coffee and the fingers just can’t stop typing…