This architecture has been out in the public view for a month or so. The media has already had its way with its initial presentation. Congress will soon weigh in on whether they think it is the right thing to do, whether it is supportable, and whether they will sign on to support it. There is some valid skepticism on the financial aspects of how Mike Griffin wants to pull this off. However, based on the technical aspects of the architecture itself, while it is more bare bones than many would have liked to see, it is a frugal, well thought out way to pick up where Apollo left off - and then move ahead with the personal exploration of the world closest to our own. Hopefully, if NASA is able to pull it off, it will both restore the confidence in NASA's ability to mount large space projects and hopefully whet the appetite of a new generation for the personal exploration of planets beyond - i.e. Mars.
Let's just hope none of the subsequent administrations give it the budget axe...