Christian Louboutin Suing Yves Saint Laurent?

We can all spot a pair of Louboutins (or attempted fakes) by their trademark crimson-red sole. Now, Christian Louboutin is suing renowned French label Yves Saint Laurent over infringement of this trademark. Certain models of Saint Laurent’s Tribute, Palais and Woodstock styles feature a red sole similar to that of Louboutin’s and have been sold at Barneys, Bergdorf’s, Saks and Nordstrom since January. Apparently, Louboutin requested that Yves Saint Laurent stop selling these styles. A spokeswoman for Saint Laurent declined to comment.

Is this case out of line, or do you sympathize with Louboutin?