Nintendo has never been one to release details until they absolutely had to. Nintendo probably won't reveal their new console until E3 or Spaceworld 2004 or 2005. Also, "Nexus" doesn't seem to go with the theme of Nintendo systems. They're catchy, but they're rarely obscure like that. They're usually more simple, like Nintendo 64, or Super Nintendo Entertainment System. You see my point?
GWAH HA HA