In a development that began in November 2007 (2005 actually, if the starting point is seen as the U.S. Supreme Court's decision in Lingle v. Chevron, U.S.A., Inc., 544 U.S 528 (2005)), the Ninth Circuit finally ditched Armendariz v. Penman, 75 F.3d 1311 (9th Cir. 1996) (en banc), and recognized that property owners are not limited to regulatory takings claims when challenging land use regulation, and the government can violate substantive due process as well. In 2008, the Ninth Circuit issued a number of decisions in which it recognized that Armendariz's forced election of a regulatory takings remedy has been truly overruled.
Rather than plow through multiple posts, it would be easier to just download a recently published article I wrote on the subject, collecting all the cases, The Ninth Circuit Rediscovers Substantive Due Process In Land Use Cases (31 Zoning and Planning Law Report (Thomson | West Dec. 2008)). It's all in there.