Well that's a disappointment. Since Vista and 7 share so much of the same architecture, I'd be inclined to believe this decision is completely political, which

Well that's a disappointment. Since Vista and 7 share so much of the same architecture, I'd be inclined to believe this decision is completely political, which reflects poorly on Microsoft's leadership. This is hardly helping Microsoft to stay competitive with Firefox and Chrome, and it needlessly makes Vista a sub-par web development platform.