"At Build, we'll share updates and talk about what's next for Windows, Windows Server, Windows Azure, Visual Studio, and more. Build is the path to creating and implementing your great ideas, and then differentiating them in the market. Join us for three days of immersive presentations delivered by the engineers behind our products and services, while networking with thousands of other developers getting the first look at what's next."
If you contrast that with TechEd's main points, I just don't see much difference:
http://northamerica.msteched.com/#fbid=c1XGcXlXIYy
"Learn about the future of Microsoft’s products, solutions and services directly from the leaders with news, announcements, and demos. Connect with Microsoft and industry thought leaders, and fellow attendees that share your technology interests and business challenges. Plan the features and architecture to support your product and business goals and to prepare your skills for the future. Attend technical sessions delivered by Microsoft engineers and industry experts"
This may be changing with Azure, but it feels like Windows is still the minimum bar needed to gain entry into the Microsoft ecosystem.
I'm sorry, but this is just getting a bit annoying. At least TRY not to be biased.