According to Playfuls, the Nintendo Revolution has gone gold. From the article: "According to gamemag.ru, who is citing Inside Gamer, is seems that Nintendo Revolution’s configuration is complete and the device is ready for mass production... Since the release date for the Revolution is in May, that gives the Japanese manufacturers 5 months in order to manufacture enough consoles."
A May Japanese launch has yet to be revealed by the Big N. Furthermore, it is rumored that the Revolution will be manufactured in China not Japan, and the console doesn't even have an official name. While possible, strike this one up as highly unlikely.