Yesterday, David Greschler posted a bit on HyperV and System Center which referenced a recent InfoWorld article as well as a recent study from ESG on performance. Towards the end of Greschler's post, he covered pricing which will be increasingly important as instances per server continue to grow. In a recent post, I wrote about virtual instance explosion and the seemingly insatiable thirst for additional computational power. You don't have to drag the Excel table out too far to see that pricing per instance without an unlimited option ensures that at best, customers will "share" the benefits of density with VMware.