By Michael Kun

Understandably, employers have celebrated the U.S. Supreme Court decisions in Wal-Mart Stores, Inc. v. Dukes, 564 U.S. —,  — S.Ct. —, 180 L. Ed. 2d 374 (2011) and AT&T Mobility v. Concepcion, 563 U.S. —, 131 S.Ct. 1740, 179 L.Ed.2d 742 (2011).  At the very least, those cases would seem…