Ivy bridge single cpus will be shipping soon and Intel has yet to get MacPro "compliant" cpus out based on Sandy Bridge. Even allowing for the design problem they announced this feels like a long time. When Sandy Bridge was firmed up Intel knew that "Sandy Bridge Xeons" were going to be produced - thus whatever design tweaks were needed must have been allowed for so the two cpus could shake hands with each other and the mother board. Why is this taking so long??