Microsoft officials have talked in the past about the company's billion-dollar business club -- the handful of product groups that regularly contribute a billion dollars or more to the company's coffers.
The enterprise services business mentioned in the STB list above is not Global Foundation Services, i.e., the team that runs the Microsoft datacenters powering Office 365, Azure, Bing, Xbox Live, etc. GFS is part of Microsoft's Online Services Division, not STB. However, Enterprise Services is responsible for supporting some of these Microsoft-hosted services.
Recently, in fact, the Windows Azure team blogged about a revamp of its support offerings to include five different support options, ranging from free, to high-end/premium, for Azure. When I asked Microsoft officials what changed in terms of previous Azure support and these new tiers, a spokesperson said "the previous support offerings were limited in comparison and only provided basic support with no mechanism for faster response times or proactive engagement without a separate Premier contract."
From a job posting on the Microsoft site: "If you like working in a growing team that delivers solutions to the world of embedded devices and has an aggressive goal of reaching $1 billion in revenue in the near future, the Windows Embedded team is the perfect place for you!"