Depending on how gutsy the company is feeling, we might even see a live demonstration of Microsoft Research's "holoportation" telepresence project, but that would require some serious belief in the network connectivity in the keynote hall, since it requires communication between a HoloLens and a special camera rig.
4. Pushes for Azure adoption
Like past Build conferences, this one is expected to contain plenty of announcements about Microsoft's Azure cloud platform, along with its on-premises server business. This is 2016, and Windows Server 2016's release is right around the corner.
Meanwhile, Azure is facing Amazon Web Services and Google Cloud Platform in a war for the public cloud. That means Microsoft is under a lot of pressure to release new features, and a developer conference is exactly the right place for it, especially after Google's cloud conference last week.
While Microsoft talks up its public cloud, I'd also hope to see a discussion of itsAzure Stack private cloud software, which is aimed at letting companies run an instance of Azure inside a private data center. Developer tools can treat an Azure Stack instance the same way they'd treat the public version of Azure, meaning that app makers will be able to build one codebase that works with on-premises servers, the public cloud, or both.
5. New developer tools
Microsoft announced earlier this year it would acquire Xamarin, a maker of tools that let .Net developers build cross-platform mobile apps. That acquisition closed just a couple of weeks ago, and it seems logical that we'll start to see the first fruits of the united Microsoft-Xamarin front at Build.
This would also be the logical time for the company to announce new features for its Visual Studio development environment, since many of the developers in attendance at Build rely on it for their daily work.
Stay tuned for the rest of this week to see what Microsoft has in store.
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