Dunno if this helps, but I saw this yesterday:
http://www.macobserver.com/article/2007/11/13.7.shtml
And zrb, I think I know what he means by "held up Leopard." Towards the end, some of the updates of Leopard going out to developers had notes that mentioned making the system-wide Software Update deliver HP printer drivers. Now, obviously that wasn't literally holding-up Leopard, but I'm guessing Mitch read an article somewhere that sort of made it sound that way since it was among the last things they worked on before shipping.
