An intriguing blog post by Brian Cinque at Sun announces — and hazily outlines — the company’s vision to consolidate its datacenters out of existence by 2015.The great migration to nothing will be evolutionary, Cinque writes, noting that Sun’s IT infrastructure will reach a point at which it will no longer be able to reap greater efficiencies by way of server virtualization, storage consolidation, and the like. At that time, Sun’s IT operations will transform “from a service oriented architecture to a more of a software as a service.”Along the way, Sun expects to cut the physical footprint of its datacenter operations in half by 2013, resulting in a reduction of 50 percent or more BTUs consumed, with less than half of this year’s power usage expected to be necessary at that time. How this will be accomplished is glossed over, with hints of future datacenter-eradication blog posts to come. But it appears that the company InfoWorld contributor Bill Snyder notes is “back in the game,” in his Top 10 underreported tech stories of 2007, is committed to a future of tapping utility computing in the cloud. Technology Industry