Does Microsoft Have First-Mover Advantage?

Gamasutra's question of the week feature just finished gathering up reactions to the query "Is the 'first mover' advantage an important factor in launching a next-generation console?" From the article: "For first mover advantage to work, the new platform must have credibility in two areas. First, it must be seen as being a significant technical advance over the current generation, otherwise it has no real purpose in the market. Secondly, there must be confidence in the new platform from both the public and the industry, without this the new platform will struggle to reach critical mass. The second mover can negate the first mover's advantage by having a higher level of credibility in these two areas. This explains the current tone of Sony spin."