The AP reports that arguments are scheduled for today in the U.S. 5th Circuit Court of Appeals on whether Louisiana's Tangipahoa Parish School Board can open its meetings with a prayer. The lower court, in Doe v. Tangipahoa Parish School Board, 2005 U.S. Dist. LEXIS 3329 (ED La., 2005), had held that precedents involving prayer in school classrooms, rather than the more permissive cases on opening legislative sessions with prayer, apply to preclude the school board's practice.
UPDATE: This AP article summarizes what went on at the oral argument.