God of War: Betrayal was introduced on June 20, 2007, for mobile phones supporting Java ME. Other game titles include Chains of Olympus (2008) and Ghost of Sparta (2010) for the PlayStation Portable (PSP) and Betrayal (2007) for mobile phones that supported the Java Platform, Micro Edition (Java ME). She enhanced more than the up coming two several years with Rahal Letterman Racing in 2006 and later on Andretti Green Racing in 2007.