After the PowerBook got transformed into the MacBook Pro, the iBook into the MacBook, and the iMac and Mac mini got Intel makeovers, it was time to attack the pro desktop segment, a place where only Intel's Core 2-based Xeon "Woodcrest" processors could manage.
For those playing along at home, at some point next year we should expect a bigger iPod touch, a netbook, a smaller iPhone, a revised iMac, a revised Mac mini, and absolutely no love at all for the MacPro.