First of all, I have never believed that Nintendo could get the Revolution out anytime before summer 2006. Mainly, because there won´t be a sufficient games portfolio until that time.
However, the good people at Game Asylum think so. Their most recent product page lists the Revolution with a $299 price tag and a Christmas 2005 release. They have had to back down on their release predictions in the past, though. Some months ago, they listed Rev games as available by March 2006. They´re probably just after having their site mentioned everywhere - and as far as this blog is concerned, they got what they wanted.