M$ has two problems.
1. As much as they are pushing Natal as the next big thing in motion controls, Nintendo's brand is still all over the motion controlled gamming industry. M$ will have to make strong leaps to capture the soccer mom market, whom comprise the majority market for motion controlled gaming. It will take more than marketing to make this happen, I don't care how good M$ is at it.
2. Right now the industry is still all about the multimedia revolution. PS3 is selling well at its new price point and I'm certain multimedia buffs are a big part of that market. M$ really wants to sell more Xbox then they really need to address this aspect to be competative. Natal alone will not push sales, it doesn't matter how good the games are.
-- Nothing is nicer than seeing your PS3 on an HDTV through an HDMI cable for the first time.
