A watan Fabrairun shekara ta 2003, shirin shirin shirin Xenon ya fara, kuma Mataimakin Shugaban Microsoft J Allard ya jagoranci. A wannan watan, Microsoft ya gudanar da wani taron ga masu ci gaba 400 a Bellevue, Washington don daukar tallafi ga tsarin. Har ila yau, a wannan watan, Peter Moore, tsohon shugaban Sega na Amurka, ya shiga Microsoft. A ranar 12 ga Agusta, 2003, ATI ya sanya hannu kan samar da naúrar sarrafa hoto don sabon wasan kwaikwayo, yarjejeniyar da aka sanar da jama'a bayan kwana biyu. Kafin kaddamar da Xbox 360, an gano wasu kayan aikin ci gaba na Alpha ta amfani da kayan aikin Apple na Power G5 Mac. Wannan saboda tsarin Power 970 na tsarin PowerPC yana gudanar da tsarin gine-ginen PowerPC guda daya wanda Xbox 360 zai gudana a karkashin IBM na Jeff Xenon.
farkon shekara ta 2003